State | 12+ (2008-2009) |
12+ (2014-2015) |
12+ (P Value) |
12-17 (2008-2009) |
12-17 (2014-2015) |
12-17 (P Value) |
18-25 (2008-2009) |
18-25 (2014-2015) |
18-25 (P Value) |
26+ (2008-2009) |
26+ (2014-2015) |
26+ (P Value) |
18+ (2008-2009) |
18+ (2014-2015) |
18+ (P Value) |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
NOTE: State and census region estimates are based on a survey-weighted hierarchical Bayes estimation approach, with their p values being the Bayes significance levels for the null hypothesis of no change between the 2008-2009 and 2014-2015 population percentages. The "Total U.S." estimates, along with the p values, are based on design-based (direct) estimation methods. a Difference between the 2008-2009 and 2014-2015 population percentages is statistically significant at the 0.05 level. b Difference between the 2008-2009 and 2014-2015 population percentages is statistically significant at the 0.10 level. Source: SAMHSA, Center for Behavioral Health Statistics and Quality, National Survey on Drug Use and Health, 2008, 2009, 2014, and 2015 (2008 and 2009 Data – Revised March 2012). |
|||||||||||||||
Total U.S. | 10.88a | 13.36 | 0.000 | 13.37 | 12.86 | 0.109 | 29.31a | 32.07 | 0.000 | 7.38a | 10.25 | 0.000 | 10.61a | 13.41 | 0.000 |
Northeast | 11.95a | 14.66 | 0.000 | 14.22 | 13.51 | 0.240 | 34.64b | 36.45 | 0.063 | 7.84a | 11.22 | 0.000 | 11.71a | 14.77 | 0.000 |
Midwest | 10.36a | 12.76 | 0.000 | 12.84 | 12.33 | 0.265 | 28.53a | 32.20 | 0.000 | 6.90a | 9.51 | 0.000 | 10.08a | 12.80 | 0.000 |
South | 9.59a | 11.64 | 0.000 | 12.06 | 11.88 | 0.697 | 25.38a | 29.20 | 0.000 | 6.62a | 8.67 | 0.000 | 9.32a | 11.62 | 0.000 |
West | 12.55a | 15.62 | 0.000 | 15.26 | 14.43 | 0.215 | 31.83 | 33.19 | 0.173 | 8.69a | 12.71 | 0.000 | 12.25a | 15.75 | 0.000 |
Alabama | 8.49 | 9.60 | 0.141 | 10.11 | 9.71 | 0.762 | 22.60b | 26.13 | 0.094 | 5.89 | 6.81 | 0.252 | 8.31 | 9.59 | 0.108 |
Alaska | 16.25a | 21.92 | 0.000 | 15.89 | 18.44 | 0.182 | 35.51b | 40.69 | 0.056 | 12.67a | 18.76 | 0.000 | 16.29a | 22.31 | 0.000 |
Arizona | 10.89a | 13.12 | 0.019 | 14.28 | 13.45 | 0.624 | 29.42 | 31.15 | 0.498 | 7.29a | 9.97 | 0.012 | 10.50a | 13.08 | 0.011 |
Arkansas | 10.78 | 11.59 | 0.361 | 12.33 | 12.14 | 0.900 | 27.59 | 27.06 | 0.824 | 7.85 | 8.93 | 0.265 | 10.61 | 11.54 | 0.330 |
California | 12.91a | 15.25 | 0.000 | 15.12 | 14.11 | 0.326 | 32.15 | 32.72 | 0.698 | 8.91a | 12.25 | 0.000 | 12.65a | 15.36 | 0.000 |
Colorado | 15.12a | 23.09 | 0.000 | 18.55 | 18.35 | 0.921 | 38.59a | 45.24 | 0.015 | 10.79a | 19.91 | 0.000 | 14.76a | 23.57 | 0.000 |
Connecticut | 12.56a | 15.67 | 0.003 | 15.91 | 15.63 | 0.878 | 37.10b | 42.10 | 0.071 | 8.25a | 11.41 | 0.006 | 12.20a | 15.68 | 0.002 |
Delaware | 11.82 | 13.06 | 0.194 | 15.53 | 13.04 | 0.130 | 35.92 | 37.32 | 0.589 | 7.35b | 9.17 | 0.084 | 11.43 | 13.06 | 0.108 |
District of Columbia | 14.34a | 23.51 | 0.000 | 14.59 | 16.55 | 0.302 | 33.16a | 43.78 | 0.000 | 10.11a | 19.71 | 0.000 | 14.33a | 23.90 | 0.000 |
Florida | 10.12a | 12.59 | 0.000 | 12.94 | 13.49 | 0.599 | 26.58a | 32.88 | 0.000 | 7.38a | 9.57 | 0.003 | 9.85a | 12.51 | 0.000 |
Georgia | 11.03b | 12.67 | 0.075 | 12.69 | 11.68 | 0.464 | 26.60 | 29.38 | 0.210 | 8.15b | 9.87 | 0.095 | 10.84b | 12.79 | 0.051 |
Hawaii | 12.06 | 12.72 | 0.567 | 14.45 | 13.77 | 0.718 | 31.14 | 27.21 | 0.144 | 8.74 | 10.37 | 0.210 | 11.82 | 12.62 | 0.516 |
Idaho | 10.66 | 11.40 | 0.398 | 13.44 | 13.31 | 0.938 | 28.30 | 25.66 | 0.251 | 7.15 | 8.68 | 0.110 | 10.32 | 11.17 | 0.368 |
Illinois | 10.54a | 12.47 | 0.001 | 13.33b | 11.53 | 0.085 | 27.95a | 31.96 | 0.010 | 7.01a | 9.33 | 0.001 | 10.22a | 12.56 | 0.000 |
Indiana | 10.28a | 13.88 | 0.000 | 12.90 | 13.83 | 0.558 | 27.22a | 33.55 | 0.009 | 7.08a | 10.40 | 0.001 | 9.99a | 13.89 | 0.000 |
Iowa | 7.68b | 9.05 | 0.068 | 11.72 | 9.46 | 0.118 | 20.54a | 27.32 | 0.003 | 4.90 | 5.73 | 0.278 | 7.25a | 9.01 | 0.027 |
Kansas | 9.39a | 12.38 | 0.000 | 12.12 | 12.45 | 0.821 | 25.63 | 29.27 | 0.124 | 6.00a | 9.27 | 0.000 | 9.09a | 12.37 | 0.000 |
Kentucky | 8.83a | 12.28 | 0.000 | 10.91 | 11.68 | 0.601 | 24.66b | 28.68 | 0.086 | 6.10a | 9.62 | 0.000 | 8.61a | 12.34 | 0.000 |
Louisiana | 8.52a | 11.22 | 0.001 | 9.76 | 10.04 | 0.834 | 23.23b | 27.56 | 0.052 | 5.51a | 8.50 | 0.001 | 8.37a | 11.35 | 0.001 |
Maine | 13.55a | 19.69 | 0.000 | 14.20b | 17.51 | 0.068 | 39.68 | 41.80 | 0.441 | 9.85a | 16.91 | 0.000 | 13.49a | 19.88 | 0.000 |
Maryland | 10.69a | 15.13 | 0.000 | 13.73 | 14.45 | 0.671 | 30.32a | 39.01 | 0.002 | 6.98a | 11.41 | 0.000 | 10.36a | 15.20 | 0.000 |
Massachusetts | 14.57a | 18.26 | 0.001 | 16.44 | 15.91 | 0.768 | 40.19 | 42.21 | 0.465 | 9.81a | 14.33 | 0.000 | 14.39a | 18.47 | 0.001 |
Michigan | 12.20a | 15.10 | 0.000 | 14.21 | 14.04 | 0.879 | 32.33 | 33.41 | 0.499 | 8.51a | 12.08 | 0.000 | 11.97a | 15.21 | 0.000 |
Minnesota | 10.37a | 12.69 | 0.011 | 11.29 | 11.43 | 0.925 | 29.92a | 35.56 | 0.024 | 6.92a | 9.17 | 0.025 | 10.27a | 12.82 | 0.009 |
Mississippi | 7.88 | 8.67 | 0.282 | 9.92 | 9.54 | 0.777 | 20.36 | 21.69 | 0.522 | 5.30 | 6.19 | 0.254 | 7.64 | 8.57 | 0.231 |
Missouri | 9.73a | 13.53 | 0.000 | 11.54 | 12.94 | 0.344 | 27.19a | 32.67 | 0.024 | 6.62a | 10.39 | 0.000 | 9.53a | 13.59 | 0.000 |
Montana | 12.23a | 15.38 | 0.003 | 15.50 | 14.62 | 0.608 | 34.96 | 33.33 | 0.522 | 8.04a | 12.49 | 0.000 | 11.90a | 15.45 | 0.002 |
Nebraska | 9.25b | 10.75 | 0.061 | 10.87 | 10.24 | 0.652 | 24.63a | 30.47 | 0.014 | 6.12 | 7.28 | 0.173 | 9.07a | 10.81 | 0.041 |
Nevada | 11.09b | 12.95 | 0.069 | 16.45b | 13.50 | 0.086 | 28.98 | 30.46 | 0.562 | 7.74a | 10.19 | 0.035 | 10.49a | 12.89 | 0.029 |
New Hampshire | 14.87a | 17.35 | 0.044 | 16.56 | 16.41 | 0.935 | 41.83 | 41.98 | 0.957 | 10.55a | 13.57 | 0.031 | 14.69a | 17.44 | 0.037 |
New Jersey | 9.19a | 11.86 | 0.001 | 11.63 | 12.41 | 0.582 | 30.00 | 32.75 | 0.234 | 5.67a | 8.66 | 0.001 | 8.93a | 11.81 | 0.001 |
New Mexico | 10.95a | 14.72 | 0.000 | 16.83 | 15.15 | 0.353 | 29.23 | 31.08 | 0.470 | 6.82a | 11.87 | 0.000 | 10.30a | 14.67 | 0.000 |
New York | 12.82a | 15.04 | 0.001 | 14.87 | 13.17 | 0.111 | 36.36 | 35.95 | 0.801 | 8.34a | 11.68 | 0.000 | 12.61a | 15.21 | 0.000 |
North Carolina | 10.46 | 11.79 | 0.102 | 13.41 | 11.44 | 0.159 | 28.35 | 31.25 | 0.199 | 7.20 | 8.61 | 0.114 | 10.14b | 11.82 | 0.054 |
North Dakota | 8.29a | 9.90 | 0.036 | 9.42 | 11.79 | 0.104 | 23.06 | 26.65 | 0.117 | 4.85 | 5.90 | 0.173 | 8.18b | 9.72 | 0.056 |
Ohio | 10.08a | 12.13 | 0.000 | 12.97b | 11.35 | 0.095 | 29.54 | 32.04 | 0.115 | 6.52a | 9.00 | 0.000 | 9.77a | 12.21 | 0.000 |
Oklahoma | 10.19 | 11.28 | 0.230 | 12.69 | 11.74 | 0.558 | 25.06 | 27.59 | 0.304 | 7.16 | 8.32 | 0.238 | 9.91 | 11.23 | 0.172 |
Oregon | 14.41a | 19.42 | 0.000 | 18.34 | 17.56 | 0.676 | 37.33 | 39.83 | 0.339 | 10.40a | 16.47 | 0.000 | 14.01a | 19.59 | 0.000 |
Pennsylvania | 10.04a | 12.35 | 0.000 | 12.87 | 11.88 | 0.354 | 28.78a | 32.36 | 0.028 | 6.62a | 9.21 | 0.000 | 9.75a | 12.40 | 0.000 |
Rhode Island | 14.34a | 18.81 | 0.000 | 16.31 | 16.28 | 0.984 | 39.48 | 43.84 | 0.156 | 9.39a | 14.44 | 0.000 | 14.14a | 19.04 | 0.000 |
South Carolina | 9.36a | 12.56 | 0.000 | 11.75 | 12.02 | 0.850 | 25.58a | 31.90 | 0.009 | 6.40a | 9.43 | 0.002 | 9.10a | 12.61 | 0.000 |
South Dakota | 8.96a | 10.77 | 0.025 | 12.05 | 10.86 | 0.428 | 25.67 | 27.84 | 0.343 | 5.55a | 7.76 | 0.010 | 8.62a | 10.76 | 0.011 |
Tennessee | 9.61b | 11.05 | 0.094 | 10.52 | 11.21 | 0.617 | 26.28 | 26.95 | 0.766 | 6.95 | 8.41 | 0.121 | 9.52b | 11.03 | 0.096 |
Texas | 8.31a | 10.10 | 0.000 | 11.24 | 11.70 | 0.620 | 22.03a | 25.21 | 0.020 | 5.29a | 7.07 | 0.001 | 7.95a | 9.90 | 0.000 |
Utah | 7.18a | 9.07 | 0.012 | 9.73 | 9.00 | 0.577 | 17.70b | 21.44 | 0.087 | 4.13a | 6.25 | 0.007 | 6.83a | 9.09 | 0.006 |
Vermont | 15.95a | 20.50 | 0.000 | 16.67 | 17.04 | 0.838 | 45.25 | 48.30 | 0.301 | 11.09a | 16.00 | 0.001 | 15.88a | 20.80 | 0.000 |
Virginia | 9.75a | 11.54 | 0.024 | 13.80b | 11.42 | 0.090 | 27.03 | 30.07 | 0.179 | 6.32a | 8.46 | 0.014 | 9.33a | 11.55 | 0.009 |
Washington | 12.81a | 17.49 | 0.000 | 15.24 | 15.61 | 0.831 | 34.11 | 35.03 | 0.714 | 9.08a | 14.90 | 0.000 | 12.55a | 17.68 | 0.000 |
West Virginia | 9.60b | 11.07 | 0.096 | 12.05 | 12.15 | 0.948 | 26.63 | 30.27 | 0.144 | 6.88 | 8.09 | 0.198 | 9.37b | 10.97 | 0.085 |
Wisconsin | 10.65 | 12.05 | 0.110 | 13.71 | 14.04 | 0.838 | 31.13 | 32.24 | 0.664 | 6.82b | 8.47 | 0.085 | 10.33 | 11.85 | 0.101 |
Wyoming | 9.88 | 10.87 | 0.256 | 14.19 | 13.30 | 0.604 | 27.24 | 27.41 | 0.949 | 6.27 | 7.77 | 0.110 | 9.43 | 10.62 | 0.191 |
State | 12+ (2008-2009) |
12+ (2014-2015) |
12+ (P Value) |
12-17 (2008-2009) |
12-17 (2014-2015) |
12-17 (P Value) |
18-25 (2008-2009) |
18-25 (2014-2015) |
18-25 (P Value) |
26+ (2008-2009) |
26+ (2014-2015) |
26+ (P Value) |
18+ (2008-2009) |
18+ (2014-2015) |
18+ (P Value) |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
NOTE: State and census region estimates are based on a survey-weighted hierarchical Bayes estimation approach, with their p values being the Bayes significance levels for the null hypothesis of no change between the 2008-2009 and 2014-2015 population percentages. The "Total U.S." estimates, along with the p values, are based on design-based (direct) estimation methods. a Difference between the 2008-2009 and 2014-2015 population percentages is statistically significant at the 0.05 level. b Difference between the 2008-2009 and 2014-2015 population percentages is statistically significant at the 0.10 level. Source: SAMHSA, Center for Behavioral Health Statistics and Quality, National Survey on Drug Use and Health, 2008, 2009, 2014, and 2015 (2008 and 2009 Data – Revised March 2012). |
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Total U.S. | 6.40a | 8.34 | 0.000 | 7.03 | 7.20 | 0.493 | 17.42a | 19.70 | 0.000 | 4.42a | 6.55 | 0.000 | 6.33a | 8.45 | 0.000 |
Northeast | 7.14a | 9.28 | 0.000 | 7.94 | 7.73 | 0.652 | 21.45 | 22.64 | 0.148 | 4.63a | 7.27 | 0.000 | 7.06a | 9.43 | 0.000 |
Midwest | 6.07a | 7.92 | 0.000 | 7.03 | 6.80 | 0.505 | 16.57a | 19.29 | 0.000 | 4.14a | 6.12 | 0.000 | 5.97a | 8.03 | 0.000 |
South | 5.47a | 7.02 | 0.000 | 6.06 | 6.49 | 0.179 | 15.21a | 17.79 | 0.000 | 3.76a | 5.28 | 0.000 | 5.41a | 7.08 | 0.000 |
West | 7.57a | 10.08 | 0.000 | 7.86 | 8.31 | 0.371 | 18.43a | 20.85 | 0.004 | 5.56a | 8.42 | 0.000 | 7.54a | 10.26 | 0.000 |
Alabama | 5.04 | 5.35 | 0.563 | 5.70 | 5.16 | 0.561 | 14.49 | 14.33 | 0.925 | 3.35 | 3.86 | 0.373 | 4.97 | 5.37 | 0.482 |
Alaska | 11.52a | 14.38 | 0.016 | 9.14 | 10.64 | 0.322 | 25.16 | 25.02 | 0.957 | 9.30a | 12.83 | 0.016 | 11.81a | 14.80 | 0.022 |
Arizona | 6.70a | 8.51 | 0.024 | 7.28 | 7.71 | 0.707 | 17.08 | 18.92 | 0.374 | 4.86a | 6.81 | 0.033 | 6.63a | 8.59 | 0.024 |
Arkansas | 6.11 | 7.17 | 0.114 | 6.73 | 6.46 | 0.794 | 16.16 | 16.93 | 0.685 | 4.40b | 5.62 | 0.097 | 6.04b | 7.25 | 0.095 |
California | 7.67a | 9.67 | 0.000 | 7.70 | 8.32 | 0.419 | 18.67 | 20.52 | 0.128 | 5.57a | 7.90 | 0.000 | 7.67a | 9.82 | 0.000 |
Colorado | 9.77a | 16.57 | 0.000 | 10.17 | 11.13 | 0.528 | 24.18a | 31.75 | 0.003 | 7.31a | 14.65 | 0.000 | 9.72a | 17.12 | 0.000 |
Connecticut | 7.26a | 9.59 | 0.004 | 8.35 | 8.34 | 0.995 | 22.56 | 24.99 | 0.325 | 4.70a | 7.25 | 0.006 | 7.14a | 9.72 | 0.004 |
Delaware | 6.97 | 8.05 | 0.144 | 7.54 | 7.42 | 0.913 | 22.67 | 21.19 | 0.511 | 4.29a | 6.01 | 0.035 | 6.91 | 8.11 | 0.128 |
District of Columbia | 8.46a | 11.93 | 0.000 | 7.50 | 8.85 | 0.332 | 19.59a | 26.19 | 0.007 | 6.07a | 9.14 | 0.007 | 8.54a | 12.10 | 0.001 |
Florida | 5.80a | 7.78 | 0.000 | 6.31 | 6.78 | 0.515 | 15.21a | 20.74 | 0.000 | 4.35a | 6.01 | 0.003 | 5.75a | 7.87 | 0.000 |
Georgia | 6.06a | 7.79 | 0.007 | 5.50 | 6.92 | 0.137 | 15.87 | 18.59 | 0.121 | 4.46a | 6.00 | 0.032 | 6.12a | 7.89 | 0.011 |
Hawaii | 8.46 | 7.95 | 0.587 | 7.72 | 6.15 | 0.198 | 19.15 | 16.09 | 0.163 | 6.84 | 6.88 | 0.971 | 8.54 | 8.11 | 0.678 |
Idaho | 5.89 | 6.34 | 0.474 | 7.50 | 6.51 | 0.351 | 14.13 | 13.69 | 0.801 | 4.21 | 5.06 | 0.229 | 5.69 | 6.32 | 0.357 |
Illinois | 5.91a | 7.91 | 0.000 | 7.29 | 6.55 | 0.330 | 16.23a | 19.63 | 0.009 | 3.86a | 6.13 | 0.000 | 5.76a | 8.06 | 0.000 |
Indiana | 6.08a | 8.72 | 0.000 | 7.24 | 8.08 | 0.466 | 16.48a | 20.71 | 0.038 | 4.17a | 6.67 | 0.002 | 5.95a | 8.79 | 0.000 |
Iowa | 4.48 | 4.78 | 0.577 | 6.88 | 5.30 | 0.132 | 11.62 | 12.67 | 0.532 | 2.92 | 3.30 | 0.483 | 4.23 | 4.72 | 0.378 |
Kansas | 5.02a | 7.28 | 0.000 | 5.97 | 6.43 | 0.654 | 13.04 | 15.73 | 0.128 | 3.40a | 5.85 | 0.001 | 4.91a | 7.38 | 0.000 |
Kentucky | 4.81a | 7.06 | 0.000 | 5.27 | 6.36 | 0.269 | 14.25 | 16.72 | 0.174 | 3.27a | 5.54 | 0.001 | 4.76a | 7.13 | 0.000 |
Louisiana | 5.14b | 6.32 | 0.051 | 4.82 | 5.33 | 0.578 | 15.19 | 16.22 | 0.571 | 3.26a | 4.71 | 0.027 | 5.18b | 6.43 | 0.054 |
Maine | 9.81a | 13.66 | 0.001 | 8.43 | 10.01 | 0.259 | 26.13 | 29.72 | 0.159 | 7.69a | 11.84 | 0.001 | 9.94a | 13.98 | 0.001 |
Maryland | 5.66a | 9.62 | 0.000 | 7.01b | 9.20 | 0.089 | 17.03a | 24.87 | 0.001 | 3.56a | 7.24 | 0.000 | 5.51a | 9.66 | 0.000 |
Massachusetts | 8.74a | 11.68 | 0.001 | 9.09 | 9.22 | 0.915 | 24.84 | 27.39 | 0.302 | 5.84a | 9.21 | 0.001 | 8.70a | 11.91 | 0.001 |
Michigan | 7.52a | 10.08 | 0.000 | 7.88 | 8.06 | 0.827 | 18.99a | 22.78 | 0.004 | 5.52a | 8.14 | 0.000 | 7.48a | 10.29 | 0.000 |
Minnesota | 5.98a | 7.60 | 0.023 | 5.58 | 6.21 | 0.526 | 17.10 | 19.30 | 0.268 | 4.13a | 5.88 | 0.028 | 6.02a | 7.74 | 0.024 |
Mississippi | 4.54 | 5.35 | 0.149 | 5.02 | 5.29 | 0.766 | 11.72 | 13.91 | 0.191 | 3.15 | 3.81 | 0.275 | 4.48 | 5.36 | 0.148 |
Missouri | 5.94a | 8.02 | 0.004 | 5.74 | 6.56 | 0.422 | 16.91 | 19.46 | 0.203 | 4.15a | 6.28 | 0.008 | 5.96a | 8.17 | 0.005 |
Montana | 8.12a | 11.09 | 0.002 | 8.78 | 8.71 | 0.951 | 21.99 | 22.88 | 0.676 | 5.72a | 9.41 | 0.001 | 8.05a | 11.32 | 0.001 |
Nebraska | 5.36 | 6.29 | 0.129 | 6.09 | 5.26 | 0.400 | 14.70 | 16.83 | 0.266 | 3.50 | 4.53 | 0.115 | 5.28b | 6.40 | 0.088 |
Nevada | 7.00 | 7.81 | 0.324 | 8.96 | 7.39 | 0.192 | 18.34 | 17.05 | 0.534 | 5.06 | 6.43 | 0.139 | 6.78 | 7.85 | 0.224 |
New Hampshire | 9.62a | 12.06 | 0.018 | 9.66 | 9.44 | 0.873 | 27.28 | 29.12 | 0.471 | 6.91a | 9.65 | 0.019 | 9.61a | 12.31 | 0.015 |
New Jersey | 5.04a | 7.01 | 0.001 | 6.16 | 6.81 | 0.511 | 17.42 | 18.96 | 0.409 | 2.99a | 5.23 | 0.001 | 4.92a | 7.03 | 0.001 |
New Mexico | 6.54a | 10.14 | 0.000 | 9.25 | 8.53 | 0.599 | 15.74a | 20.61 | 0.022 | 4.49a | 8.55 | 0.000 | 6.24a | 10.31 | 0.000 |
New York | 7.73a | 9.56 | 0.000 | 8.50 | 7.55 | 0.234 | 23.09 | 22.69 | 0.773 | 4.87a | 7.54 | 0.000 | 7.65a | 9.75 | 0.000 |
North Carolina | 6.30 | 7.29 | 0.129 | 7.19 | 5.97 | 0.198 | 16.85 | 19.04 | 0.230 | 4.49 | 5.51 | 0.164 | 6.21b | 7.43 | 0.082 |
North Dakota | 4.67a | 5.95 | 0.032 | 5.06 | 6.21 | 0.248 | 10.65a | 14.77 | 0.012 | 3.30 | 3.93 | 0.312 | 4.64a | 5.92 | 0.042 |
Ohio | 5.96a | 7.65 | 0.000 | 7.63a | 6.05 | 0.037 | 17.26b | 19.55 | 0.080 | 3.89a | 5.91 | 0.000 | 5.77a | 7.82 | 0.000 |
Oklahoma | 5.60 | 6.24 | 0.348 | 6.23 | 5.42 | 0.428 | 14.18 | 14.87 | 0.719 | 3.96 | 4.82 | 0.257 | 5.53 | 6.33 | 0.275 |
Oregon | 9.29a | 12.73 | 0.001 | 8.66 | 9.42 | 0.561 | 23.87 | 26.29 | 0.280 | 7.11a | 10.99 | 0.001 | 9.36a | 13.04 | 0.001 |
Pennsylvania | 5.81a | 7.73 | 0.000 | 7.19 | 6.98 | 0.786 | 17.08 | 18.97 | 0.156 | 3.80a | 6.02 | 0.000 | 5.67a | 7.80 | 0.000 |
Rhode Island | 10.04a | 13.02 | 0.006 | 9.09 | 10.19 | 0.439 | 27.14 | 28.89 | 0.530 | 6.94a | 10.39 | 0.005 | 10.13a | 13.28 | 0.007 |
South Carolina | 5.91a | 8.11 | 0.001 | 5.55 | 6.57 | 0.292 | 16.88a | 21.07 | 0.037 | 4.16a | 6.16 | 0.011 | 5.95a | 8.27 | 0.002 |
South Dakota | 5.14a | 6.93 | 0.006 | 6.61 | 6.43 | 0.866 | 13.55b | 17.05 | 0.057 | 3.44a | 5.22 | 0.015 | 4.98a | 6.99 | 0.004 |
Tennessee | 5.42 | 6.34 | 0.125 | 5.19 | 5.90 | 0.440 | 16.64 | 15.95 | 0.704 | 3.72 | 4.81 | 0.102 | 5.44 | 6.38 | 0.144 |
Texas | 4.74a | 6.10 | 0.000 | 6.11 | 6.86 | 0.286 | 13.45 | 15.08 | 0.136 | 2.91a | 4.32 | 0.001 | 4.58a | 6.00 | 0.000 |
Utah | 3.60a | 5.04 | 0.006 | 4.78 | 4.54 | 0.786 | 8.21b | 11.07 | 0.060 | 2.27a | 3.75 | 0.010 | 3.44a | 5.11 | 0.003 |
Vermont | 10.85a | 14.74 | 0.001 | 9.73 | 10.86 | 0.446 | 30.56 | 34.95 | 0.103 | 7.75a | 11.61 | 0.004 | 10.96a | 15.08 | 0.001 |
Virginia | 5.33a | 6.63 | 0.027 | 6.33 | 5.44 | 0.353 | 15.70 | 17.82 | 0.235 | 3.45a | 4.90 | 0.024 | 5.23a | 6.74 | 0.015 |
Washington | 7.21a | 11.22 | 0.000 | 7.74 | 9.17 | 0.264 | 17.19a | 21.87 | 0.024 | 5.53a | 9.74 | 0.000 | 7.15a | 11.42 | 0.000 |
West Virginia | 5.50a | 6.92 | 0.029 | 5.74 | 6.05 | 0.746 | 17.46 | 18.89 | 0.483 | 3.74a | 5.22 | 0.037 | 5.47a | 7.00 | 0.028 |
Wisconsin | 6.19 | 6.89 | 0.291 | 7.20 | 7.60 | 0.736 | 17.49 | 17.52 | 0.986 | 4.16 | 5.05 | 0.220 | 6.09 | 6.82 | 0.296 |
Wyoming | 5.42 | 6.32 | 0.151 | 7.55 | 6.59 | 0.392 | 15.50 | 15.64 | 0.943 | 3.37b | 4.71 | 0.054 | 5.19 | 6.30 | 0.102 |
State | 12+ (2008-2009) |
12+ (2014-2015) |
12+ (P Value) |
12-17 (2008-2009) |
12-17 (2014-2015) |
12-17 (P Value) |
18-25 (2008-2009) |
18-25 (2014-2015) |
18-25 (P Value) |
26+ (2008-2009) |
26+ (2014-2015) |
26+ (P Value) |
18+ (2008-2009) |
18+ (2014-2015) |
18+ (P Value) |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
NOTE: State and census region estimates are based on a survey-weighted hierarchical Bayes estimation approach, with their p values being the Bayes significance levels for the null hypothesis of no change between the 2008-2009 and 2014-2015 population percentages. The "Total U.S." estimates, along with the p values, are based on design-based (direct) estimation methods. NOTE: Average annual initiation of marijuana (%) = 100 × {[X1 ÷ (0.5 × X1 + X2)] ÷ 2}, where X1 is the number of marijuana initiates in the past 24 months and X2 is the number of individuals who never used marijuana (with the at-risk population defined as 0.5 × X1 + X2). Both of the computation components, X1 and X2, are based on a survey-weighted hierarchical Bayes estimation approach. The age group shown is based on a respondent's age at the time of the interview, not his or her age at first use. For details, see Section B of the "2011-2012 NSDUH: Guide to State Tables and Summary of Small Area Estimation Methodology" at http://www.samhsa.gov/data/. a Difference between the 2008-2009 and 2014-2015 population percentages is statistically significant at the 0.05 level. b Difference between the 2008-2009 and 2014-2015 population percentages is statistically significant at the 0.10 level. Source: SAMHSA, Center for Behavioral Health Statistics and Quality, National Survey on Drug Use and Health, 2008, 2009, 2014, and 2015 (2008 and 2009 Data – Revised March 2012). |
|||||||||||||||
Total U.S. | 1.75a | 1.95 | 0.000 | 5.74a | 5.41 | 0.050 | 7.09a | 7.88 | 0.005 | 0.13a | 0.31 | 0.000 | 1.07a | 1.36 | 0.000 |
Northeast | 1.80a | 2.04 | 0.005 | 5.92 | 5.55 | 0.183 | 7.96 | 8.67 | 0.141 | 0.13a | 0.34 | 0.000 | 1.12a | 1.47 | 0.000 |
Midwest | 1.79a | 1.96 | 0.014 | 5.57a | 5.12 | 0.038 | 7.41b | 8.14 | 0.059 | 0.12a | 0.29 | 0.000 | 1.12a | 1.39 | 0.000 |
South | 1.56a | 1.75 | 0.002 | 5.22 | 5.13 | 0.631 | 6.34a | 7.12 | 0.021 | 0.12a | 0.26 | 0.000 | 0.95a | 1.20 | 0.000 |
West | 2.00a | 2.21 | 0.033 | 6.57b | 6.02 | 0.086 | 7.38b | 8.32 | 0.053 | 0.14a | 0.41 | 0.000 | 1.18a | 1.54 | 0.000 |
Alabama | 1.38 | 1.49 | 0.454 | 4.47 | 4.36 | 0.870 | 5.53 | 6.39 | 0.305 | 0.12b | 0.20 | 0.059 | 0.87 | 1.05 | 0.185 |
Alaska | 2.30a | 3.54 | 0.000 | 6.35 | 7.52 | 0.207 | 7.33a | 10.69 | 0.012 | 0.17a | 0.74 | 0.000 | 1.34a | 2.52 | 0.000 |
Arizona | 1.72a | 2.15 | 0.030 | 6.10 | 6.09 | 0.992 | 6.58b | 8.36 | 0.099 | 0.12a | 0.35 | 0.000 | 0.95a | 1.44 | 0.002 |
Arkansas | 1.56b | 1.84 | 0.096 | 5.15 | 5.37 | 0.746 | 6.99 | 7.08 | 0.925 | 0.12a | 0.26 | 0.005 | 0.95b | 1.23 | 0.052 |
California | 2.06 | 2.16 | 0.440 | 6.66 | 5.89 | 0.107 | 7.39 | 8.17 | 0.264 | 0.14a | 0.42 | 0.000 | 1.23a | 1.53 | 0.014 |
Colorado | 2.45a | 3.18 | 0.011 | 8.11 | 8.16 | 0.961 | 9.23b | 12.05 | 0.064 | 0.17a | 0.53 | 0.000 | 1.38a | 2.13 | 0.002 |
Connecticut | 2.14 | 2.42 | 0.235 | 7.09 | 6.61 | 0.577 | 8.98 | 9.80 | 0.535 | 0.14a | 0.37 | 0.000 | 1.23a | 1.63 | 0.033 |
Delaware | 2.13 | 1.83 | 0.139 | 6.67b | 5.29 | 0.082 | 9.55 | 7.73 | 0.135 | 0.14a | 0.29 | 0.006 | 1.32 | 1.26 | 0.735 |
District of Columbia | 2.33a | 3.60 | 0.000 | 7.25 | 8.26 | 0.332 | 8.38a | 12.98 | 0.003 | 0.24a | 0.78 | 0.000 | 1.68a | 2.99 | 0.000 |
Florida | 1.39a | 1.67 | 0.008 | 5.35 | 5.57 | 0.610 | 6.22b | 7.39 | 0.072 | 0.10a | 0.28 | 0.000 | 0.83a | 1.11 | 0.002 |
Georgia | 1.87 | 1.94 | 0.684 | 5.46 | 5.17 | 0.664 | 6.90 | 7.58 | 0.469 | 0.17a | 0.28 | 0.042 | 1.17 | 1.34 | 0.268 |
Hawaii | 1.71 | 2.04 | 0.150 | 6.42 | 6.31 | 0.912 | 7.57 | 6.99 | 0.635 | 0.11a | 0.59 | 0.001 | 1.01a | 1.42 | 0.047 |
Idaho | 1.86 | 1.82 | 0.833 | 5.50 | 5.50 | 0.993 | 7.18 | 6.13 | 0.282 | 0.13a | 0.25 | 0.015 | 1.14 | 1.12 | 0.892 |
Illinois | 1.74 | 1.81 | 0.532 | 5.65a | 4.59 | 0.017 | 6.85 | 7.97 | 0.115 | 0.12a | 0.29 | 0.000 | 1.07a | 1.33 | 0.023 |
Indiana | 1.76a | 2.30 | 0.006 | 5.81 | 5.97 | 0.838 | 7.37 | 8.97 | 0.148 | 0.11a | 0.33 | 0.000 | 1.05a | 1.59 | 0.001 |
Iowa | 1.55 | 1.66 | 0.510 | 5.34 | 4.31 | 0.129 | 5.97a | 7.90 | 0.049 | 0.10a | 0.21 | 0.010 | 0.95a | 1.25 | 0.048 |
Kansas | 1.72 | 1.85 | 0.514 | 5.65 | 5.01 | 0.373 | 6.85 | 7.28 | 0.676 | 0.10a | 0.26 | 0.001 | 1.06 | 1.29 | 0.141 |
Kentucky | 1.48 | 1.63 | 0.352 | 5.46 | 4.62 | 0.211 | 6.09 | 6.48 | 0.664 | 0.14b | 0.23 | 0.055 | 0.86a | 1.12 | 0.045 |
Louisiana | 1.33a | 1.74 | 0.010 | 3.89 | 4.46 | 0.344 | 5.53a | 7.80 | 0.018 | 0.12a | 0.24 | 0.011 | 0.91a | 1.29 | 0.009 |
Maine | 1.73a | 2.50 | 0.000 | 5.43a | 7.45 | 0.012 | 8.97 | 10.31 | 0.336 | 0.14a | 0.42 | 0.000 | 1.09a | 1.61 | 0.005 |
Maryland | 1.81a | 2.33 | 0.016 | 5.61 | 6.12 | 0.508 | 8.20 | 9.86 | 0.204 | 0.12a | 0.38 | 0.000 | 1.17a | 1.62 | 0.017 |
Massachusetts | 2.27 | 2.56 | 0.233 | 7.13 | 6.82 | 0.715 | 9.69 | 10.16 | 0.741 | 0.16a | 0.43 | 0.000 | 1.42b | 1.83 | 0.060 |
Michigan | 2.10 | 2.23 | 0.375 | 5.97 | 5.79 | 0.699 | 8.72 | 8.17 | 0.497 | 0.13a | 0.35 | 0.000 | 1.33 | 1.54 | 0.129 |
Minnesota | 1.77 | 1.84 | 0.699 | 4.85 | 4.39 | 0.464 | 7.89 | 8.36 | 0.681 | 0.12a | 0.29 | 0.001 | 1.20 | 1.37 | 0.314 |
Mississippi | 1.34 | 1.48 | 0.355 | 4.09 | 4.41 | 0.600 | 5.22 | 5.92 | 0.385 | 0.11b | 0.18 | 0.096 | 0.88 | 1.02 | 0.294 |
Missouri | 1.64a | 2.08 | 0.017 | 5.11 | 5.62 | 0.468 | 7.12b | 9.06 | 0.083 | 0.12a | 0.28 | 0.001 | 1.02a | 1.46 | 0.006 |
Montana | 2.04 | 2.30 | 0.234 | 6.67 | 6.19 | 0.549 | 9.79 | 8.67 | 0.383 | 0.13a | 0.38 | 0.000 | 1.25b | 1.58 | 0.084 |
Nebraska | 1.54 | 1.52 | 0.891 | 4.48b | 3.51 | 0.099 | 6.32 | 7.13 | 0.419 | 0.10a | 0.22 | 0.008 | 1.05 | 1.19 | 0.400 |
Nevada | 1.85a | 2.26 | 0.047 | 7.16 | 6.28 | 0.322 | 6.55a | 9.85 | 0.005 | 0.15a | 0.39 | 0.000 | 0.91a | 1.56 | 0.000 |
New Hampshire | 2.25a | 2.84 | 0.022 | 6.29 | 6.82 | 0.514 | 10.53 | 10.88 | 0.820 | 0.15a | 0.47 | 0.000 | 1.44a | 2.00 | 0.015 |
New Jersey | 1.50 | 1.74 | 0.133 | 4.89 | 4.99 | 0.884 | 7.69 | 7.83 | 0.890 | 0.10a | 0.30 | 0.000 | 0.96b | 1.22 | 0.062 |
New Mexico | 2.06 | 2.01 | 0.801 | 7.84 | 6.71 | 0.236 | 8.01 | 6.90 | 0.334 | 0.12a | 0.36 | 0.001 | 1.09 | 1.21 | 0.456 |
New York | 1.81 | 2.02 | 0.113 | 6.05 | 5.43 | 0.184 | 7.38 | 8.63 | 0.104 | 0.13a | 0.36 | 0.000 | 1.12a | 1.50 | 0.002 |
North Carolina | 1.69 | 1.88 | 0.246 | 6.24 | 5.35 | 0.191 | 6.67 | 7.81 | 0.239 | 0.13a | 0.27 | 0.007 | 0.96a | 1.28 | 0.020 |
North Dakota | 1.56 | 1.83 | 0.143 | 4.28 | 4.91 | 0.332 | 6.59 | 6.68 | 0.934 | 0.08a | 0.26 | 0.000 | 1.15 | 1.38 | 0.187 |
Ohio | 1.78 | 1.86 | 0.510 | 5.59 | 4.90 | 0.132 | 7.47 | 7.92 | 0.550 | 0.13a | 0.27 | 0.002 | 1.10b | 1.31 | 0.060 |
Oklahoma | 1.47b | 1.80 | 0.062 | 4.87 | 5.62 | 0.316 | 5.77 | 6.03 | 0.769 | 0.11a | 0.27 | 0.001 | 0.91 | 1.14 | 0.108 |
Oregon | 2.42 | 2.48 | 0.825 | 7.87 | 6.85 | 0.263 | 9.63 | 9.74 | 0.935 | 0.19a | 0.45 | 0.004 | 1.39 | 1.69 | 0.160 |
Pennsylvania | 1.61 | 1.76 | 0.222 | 5.37 | 4.74 | 0.175 | 7.47 | 7.65 | 0.820 | 0.10a | 0.29 | 0.000 | 1.01a | 1.28 | 0.023 |
Rhode Island | 2.27 | 2.50 | 0.371 | 7.20 | 6.71 | 0.596 | 9.16 | 10.32 | 0.436 | 0.16a | 0.39 | 0.001 | 1.40b | 1.78 | 0.082 |
South Carolina | 1.46a | 1.91 | 0.008 | 4.77 | 5.82 | 0.128 | 6.41 | 8.06 | 0.109 | 0.12a | 0.26 | 0.002 | 0.93a | 1.28 | 0.015 |
South Dakota | 1.59 | 1.66 | 0.684 | 5.17 | 4.45 | 0.282 | 6.70 | 7.17 | 0.625 | 0.09a | 0.24 | 0.001 | 1.01 | 1.20 | 0.181 |
Tennessee | 1.26a | 1.55 | 0.047 | 4.11 | 4.46 | 0.553 | 6.00 | 6.71 | 0.426 | 0.12a | 0.22 | 0.024 | 0.81a | 1.09 | 0.029 |
Texas | 1.59 | 1.65 | 0.575 | 5.20 | 4.87 | 0.439 | 5.86 | 6.08 | 0.711 | 0.11a | 0.23 | 0.004 | 0.95 | 1.08 | 0.178 |
Utah | 1.29 | 1.38 | 0.588 | 3.94 | 3.05 | 0.115 | 3.64b | 4.93 | 0.092 | 0.10 | 0.18 | 0.183 | 0.82 | 1.05 | 0.129 |
Vermont | 2.47 | 2.86 | 0.177 | 7.37 | 6.97 | 0.653 | 11.93 | 13.02 | 0.548 | 0.15a | 0.45 | 0.001 | 1.56a | 2.10 | 0.034 |
Virginia | 1.90 | 1.90 | 0.983 | 5.98 | 5.03 | 0.150 | 7.59 | 8.10 | 0.607 | 0.13a | 0.29 | 0.002 | 1.20 | 1.38 | 0.252 |
Washington | 1.94b | 2.30 | 0.096 | 5.68 | 5.96 | 0.723 | 8.53 | 9.00 | 0.697 | 0.16a | 0.41 | 0.000 | 1.24a | 1.63 | 0.036 |
West Virginia | 1.27a | 1.71 | 0.004 | 5.33 | 5.66 | 0.643 | 5.76a | 7.97 | 0.025 | 0.12a | 0.23 | 0.015 | 0.72a | 1.13 | 0.001 |
Wisconsin | 1.92 | 2.12 | 0.322 | 6.16 | 6.05 | 0.890 | 8.39 | 8.24 | 0.899 | 0.12a | 0.31 | 0.000 | 1.17 | 1.43 | 0.123 |
Wyoming | 1.92 | 1.81 | 0.577 | 6.47 | 5.33 | 0.135 | 7.70 | 7.22 | 0.662 | 0.11a | 0.26 | 0.001 | 1.15 | 1.21 | 0.685 |
State | 12+ (2008-2009) |
12+ (2014-2015) |
12+ (P Value) |
12-17 (2008-2009) |
12-17 (2014-2015) |
12-17 (P Value) |
18-25 (2008-2009) |
18-25 (2014-2015) |
18-25 (P Value) |
26+ (2008-2009) |
26+ (2014-2015) |
26+ (P Value) |
18+ (2008-2009) |
18+ (2014-2015) |
18+ (P Value) |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
NOTE: State and census region estimates are based on a survey-weighted hierarchical Bayes estimation approach, with their p values being the Bayes significance levels for the null hypothesis of no change between the 2008-2009 and 2014-2015 population percentages. The "Total U.S." estimates, along with the p values, are based on design-based (direct) estimation methods. a Difference between the 2008-2009 and 2014-2015 population percentages is statistically significant at the 0.05 level. b Difference between the 2008-2009 and 2014-2015 population percentages is statistically significant at the 0.10 level. Source: SAMHSA, Center for Behavioral Health Statistics and Quality, National Survey on Drug Use and Health, 2008, 2009, 2014, and 2015 (2008 and 2009 Data – Revised March 2012). |
|||||||||||||||
Total U.S. | 2.01a | 1.76 | 0.001 | 1.11a | 0.64 | 0.000 | 5.46a | 4.98 | 0.040 | 1.53a | 1.35 | 0.044 | 2.11a | 1.88 | 0.006 |
Northeast | 2.38 | 2.18 | 0.167 | 1.11a | 0.66 | 0.000 | 6.68 | 6.06 | 0.154 | 1.81 | 1.71 | 0.548 | 2.52 | 2.32 | 0.234 |
Midwest | 1.82a | 1.43 | 0.000 | 1.06a | 0.54 | 0.000 | 5.12a | 4.22 | 0.004 | 1.34a | 1.07 | 0.027 | 1.90a | 1.53 | 0.001 |
South | 1.81a | 1.56 | 0.012 | 0.98a | 0.57 | 0.000 | 4.64 | 4.32 | 0.238 | 1.44b | 1.22 | 0.066 | 1.90a | 1.67 | 0.031 |
West | 2.21 | 2.05 | 0.292 | 1.35a | 0.85 | 0.004 | 6.08 | 5.88 | 0.647 | 1.62 | 1.53 | 0.598 | 2.31 | 2.18 | 0.431 |
Alabama | 1.38 | 1.22 | 0.557 | 0.76b | 0.41 | 0.051 | 3.44 | 3.20 | 0.752 | 1.11 | 0.99 | 0.686 | 1.45 | 1.31 | 0.636 |
Alaska | 2.99a | 2.00 | 0.037 | 1.45a | 0.65 | 0.006 | 7.38a | 4.79 | 0.030 | 2.39 | 1.64 | 0.170 | 3.18b | 2.15 | 0.052 |
Arizona | 2.33 | 2.29 | 0.903 | 1.38b | 0.85 | 0.066 | 6.91 | 6.92 | 0.994 | 1.68 | 1.67 | 0.975 | 2.44 | 2.44 | 0.999 |
Arkansas | 1.43 | 1.07 | 0.131 | 0.89a | 0.48 | 0.035 | 3.52 | 2.89 | 0.383 | 1.16 | 0.84 | 0.228 | 1.49 | 1.13 | 0.179 |
California | 2.12 | 2.16 | 0.863 | 1.39b | 0.94 | 0.072 | 5.57 | 5.91 | 0.614 | 1.56 | 1.63 | 0.769 | 2.20 | 2.28 | 0.748 |
Colorado | 3.28 | 2.75 | 0.271 | 1.37 | 0.98 | 0.230 | 8.94 | 8.62 | 0.827 | 2.56 | 1.97 | 0.247 | 3.47 | 2.93 | 0.302 |
Connecticut | 2.05 | 2.43 | 0.333 | 1.26a | 0.67 | 0.018 | 6.25 | 7.60 | 0.292 | 1.49 | 1.80 | 0.465 | 2.14 | 2.60 | 0.276 |
Delaware | 2.36 | 2.21 | 0.709 | 0.91b | 0.56 | 0.074 | 6.40 | 6.36 | 0.970 | 1.87 | 1.73 | 0.761 | 2.52 | 2.37 | 0.744 |
District of Columbia | 3.76 | 3.19 | 0.415 | 0.43 | 0.34 | 0.481 | 5.14 | 5.60 | 0.668 | 3.76 | 2.88 | 0.289 | 4.01 | 3.35 | 0.378 |
Florida | 1.80 | 1.90 | 0.658 | 1.05a | 0.65 | 0.022 | 4.70b | 5.91 | 0.070 | 1.46 | 1.45 | 0.983 | 1.88 | 2.02 | 0.569 |
Georgia | 1.51 | 1.72 | 0.480 | 0.81b | 0.51 | 0.084 | 3.93 | 3.85 | 0.919 | 1.20 | 1.51 | 0.377 | 1.60 | 1.86 | 0.432 |
Hawaii | 1.76 | 1.89 | 0.730 | 1.25 | 0.76 | 0.191 | 4.39 | 5.21 | 0.450 | 1.40 | 1.50 | 0.809 | 1.81 | 1.99 | 0.655 |
Idaho | 1.31 | 1.04 | 0.202 | 1.24a | 0.57 | 0.008 | 4.52 | 3.59 | 0.281 | 0.75 | 0.67 | 0.680 | 1.31 | 1.09 | 0.349 |
Illinois | 1.91 | 1.80 | 0.660 | 0.99a | 0.60 | 0.026 | 4.64 | 4.81 | 0.806 | 1.53 | 1.45 | 0.752 | 2.01 | 1.93 | 0.756 |
Indiana | 1.66 | 1.24 | 0.104 | 1.09a | 0.51 | 0.009 | 4.97 | 3.91 | 0.257 | 1.18 | 0.86 | 0.230 | 1.72 | 1.32 | 0.159 |
Iowa | 1.11 | 1.06 | 0.797 | 1.11a | 0.47 | 0.006 | 3.64 | 3.63 | 0.984 | 0.66 | 0.67 | 0.976 | 1.11 | 1.12 | 0.973 |
Kansas | 1.52 | 1.18 | 0.149 | 1.11a | 0.61 | 0.042 | 4.97 | 3.59 | 0.132 | 0.94 | 0.82 | 0.610 | 1.57 | 1.24 | 0.216 |
Kentucky | 1.36 | 1.59 | 0.389 | 1.02a | 0.56 | 0.039 | 4.37 | 4.74 | 0.697 | 0.93 | 1.19 | 0.364 | 1.40 | 1.69 | 0.310 |
Louisiana | 2.34 | 1.74 | 0.122 | 0.84a | 0.44 | 0.031 | 4.77 | 3.61 | 0.188 | 2.08 | 1.57 | 0.269 | 2.51 | 1.88 | 0.143 |
Maine | 2.30 | 1.79 | 0.115 | 1.13a | 0.65 | 0.040 | 7.67 | 6.41 | 0.326 | 1.69 | 1.27 | 0.226 | 2.42 | 1.88 | 0.140 |
Maryland | 1.57 | 1.51 | 0.853 | 0.87a | 0.46 | 0.027 | 4.03 | 3.66 | 0.667 | 1.24 | 1.28 | 0.902 | 1.64 | 1.61 | 0.932 |
Massachusetts | 2.45 | 2.45 | 0.997 | 1.18b | 0.71 | 0.052 | 7.16 | 7.28 | 0.922 | 1.76 | 1.79 | 0.941 | 2.58 | 2.61 | 0.939 |
Michigan | 2.00a | 1.24 | 0.000 | 1.05a | 0.44 | 0.001 | 5.74a | 3.56 | 0.001 | 1.49a | 0.94 | 0.020 | 2.11a | 1.33 | 0.001 |
Minnesota | 1.77 | 1.52 | 0.391 | 1.12a | 0.57 | 0.016 | 5.14 | 4.85 | 0.781 | 1.27 | 1.10 | 0.553 | 1.84 | 1.62 | 0.492 |
Mississippi | 1.36 | 1.00 | 0.159 | 0.63b | 0.36 | 0.072 | 3.15a | 1.83 | 0.030 | 1.14 | 0.94 | 0.510 | 1.45 | 1.08 | 0.188 |
Missouri | 2.01a | 1.35 | 0.025 | 1.00a | 0.49 | 0.011 | 5.74 | 4.12 | 0.103 | 1.52b | 0.98 | 0.086 | 2.12a | 1.43 | 0.036 |
Montana | 2.32a | 1.49 | 0.006 | 1.17a | 0.62 | 0.024 | 7.60a | 4.65 | 0.010 | 1.58b | 1.06 | 0.090 | 2.44a | 1.57 | 0.009 |
Nebraska | 1.57 | 1.37 | 0.425 | 1.10a | 0.56 | 0.013 | 4.61 | 3.99 | 0.492 | 1.06 | 1.00 | 0.831 | 1.62 | 1.46 | 0.555 |
Nevada | 2.34a | 1.46 | 0.006 | 1.50a | 0.72 | 0.007 | 6.72a | 4.16 | 0.015 | 1.79b | 1.14 | 0.052 | 2.43a | 1.54 | 0.011 |
New Hampshire | 2.75 | 3.07 | 0.471 | 1.23 | 0.83 | 0.177 | 8.97 | 10.54 | 0.335 | 1.98 | 2.13 | 0.743 | 2.91 | 3.28 | 0.451 |
New Jersey | 1.73 | 1.72 | 0.948 | 1.04a | 0.60 | 0.043 | 4.93 | 4.55 | 0.667 | 1.33 | 1.42 | 0.781 | 1.81 | 1.83 | 0.952 |
New Mexico | 2.17 | 1.92 | 0.489 | 1.30 | 0.82 | 0.111 | 6.55 | 5.93 | 0.616 | 1.47 | 1.38 | 0.782 | 2.26 | 2.04 | 0.568 |
New York | 2.66 | 2.54 | 0.650 | 1.09b | 0.73 | 0.063 | 7.31 | 6.29 | 0.192 | 2.02 | 2.10 | 0.811 | 2.83 | 2.71 | 0.691 |
North Carolina | 2.10 | 1.80 | 0.343 | 0.93a | 0.53 | 0.032 | 4.90 | 5.12 | 0.809 | 1.79 | 1.40 | 0.269 | 2.22 | 1.93 | 0.403 |
North Dakota | 1.22 | 1.18 | 0.855 | 1.05a | 0.56 | 0.039 | 3.78 | 3.45 | 0.684 | 0.68 | 0.74 | 0.764 | 1.24 | 1.24 | 0.993 |
Ohio | 1.49 | 1.45 | 0.836 | 1.02a | 0.50 | 0.002 | 4.51 | 4.24 | 0.662 | 1.05 | 1.11 | 0.787 | 1.54 | 1.54 | 0.973 |
Oklahoma | 1.50b | 1.11 | 0.092 | 1.14a | 0.50 | 0.007 | 4.70 | 3.58 | 0.211 | 0.97 | 0.75 | 0.337 | 1.54 | 1.17 | 0.156 |
Oregon | 2.63 | 2.14 | 0.163 | 1.23b | 0.80 | 0.096 | 8.04 | 6.81 | 0.316 | 1.95 | 1.57 | 0.294 | 2.77 | 2.27 | 0.191 |
Pennsylvania | 2.27a | 1.62 | 0.012 | 1.08a | 0.54 | 0.001 | 5.86 | 4.71 | 0.107 | 1.82a | 1.24 | 0.044 | 2.39a | 1.72 | 0.018 |
Rhode Island | 3.89a | 2.52 | 0.009 | 1.28a | 0.74 | 0.037 | 9.39 | 7.64 | 0.260 | 3.17a | 1.77 | 0.013 | 4.15a | 2.68 | 0.011 |
South Carolina | 2.75a | 1.63 | 0.005 | 0.83b | 0.50 | 0.061 | 4.97 | 4.42 | 0.555 | 2.62a | 1.30 | 0.004 | 2.95a | 1.74 | 0.006 |
South Dakota | 1.17 | 1.02 | 0.462 | 0.95a | 0.49 | 0.040 | 3.91 | 3.15 | 0.328 | 0.71 | 0.71 | 0.989 | 1.20 | 1.08 | 0.595 |
Tennessee | 1.57 | 1.52 | 0.851 | 0.93a | 0.54 | 0.050 | 4.31 | 4.22 | 0.918 | 1.23 | 1.19 | 0.902 | 1.64 | 1.62 | 0.948 |
Texas | 1.89a | 1.41 | 0.013 | 1.16a | 0.70 | 0.019 | 5.09 | 4.19 | 0.141 | 1.40b | 1.00 | 0.063 | 1.98a | 1.50 | 0.024 |
Utah | 1.43a | 0.87 | 0.020 | 1.16a | 0.40 | 0.006 | 4.14 | 2.73 | 0.115 | 0.80 | 0.53 | 0.202 | 1.47a | 0.94 | 0.049 |
Vermont | 3.01 | 2.67 | 0.407 | 1.22 | 0.81 | 0.151 | 10.17 | 9.33 | 0.600 | 2.05 | 1.70 | 0.409 | 3.19 | 2.83 | 0.433 |
Virginia | 1.75a | 1.24 | 0.049 | 1.02a | 0.46 | 0.003 | 4.95b | 3.50 | 0.072 | 1.30 | 0.95 | 0.223 | 1.83b | 1.31 | 0.077 |
Washington | 2.08 | 1.84 | 0.465 | 1.20a | 0.67 | 0.032 | 6.24 | 5.39 | 0.432 | 1.51 | 1.40 | 0.745 | 2.17 | 1.95 | 0.548 |
West Virginia | 2.51a | 1.54 | 0.005 | 1.05a | 0.59 | 0.038 | 7.65b | 5.32 | 0.058 | 1.93a | 1.07 | 0.017 | 2.65a | 1.63 | 0.007 |
Wisconsin | 2.71a | 1.59 | 0.001 | 1.19b | 0.72 | 0.076 | 7.27a | 4.96 | 0.050 | 2.13a | 1.13 | 0.005 | 2.87a | 1.68 | 0.001 |
Wyoming | 1.46 | 1.07 | 0.127 | 1.13a | 0.56 | 0.020 | 5.25 | 3.74 | 0.126 | 0.83 | 0.68 | 0.555 | 1.49 | 1.12 | 0.184 |
State | 12+ (2008-2009) |
12+ (2014-2015) |
12+ (P Value) |
12-17 (2008-2009) |
12-17 (2014-2015) |
12-17 (P Value) |
18-25 (2008-2009) |
18-25 (2014-2015) |
18-25 (P Value) |
26+ (2008-2009) |
26+ (2014-2015) |
26+ (P Value) |
18+ (2008-2009) |
18+ (2014-2015) |
18+ (P Value) |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
NOTE: State and census region estimates are based on a survey-weighted hierarchical Bayes estimation approach, with their p values being the Bayes significance levels for the null hypothesis of no change between the 2008-2009 and 2014-2015 population percentages. The "Total U.S." estimates, along with the p values, are based on design-based (direct) estimation methods. a Difference between the 2008-2009 and 2014-2015 population percentages is statistically significant at the 0.05 level. b Difference between the 2008-2009 and 2014-2015 population percentages is statistically significant at the 0.10 level. Source: SAMHSA, Center for Behavioral Health Statistics and Quality, National Survey on Drug Use and Health, 2008, 2009, 2014, and 2015 (2008 and 2009 Data – Revised March 2012). |
|||||||||||||||
Total U.S. | 51.74 | 52.18 | 0.237 | 14.79a | 10.58 | 0.000 | 61.45a | 58.96 | 0.000 | 54.80a | 56.04 | 0.007 | 55.78b | 56.46 | 0.093 |
Northeast | 56.57 | 56.66 | 0.912 | 16.68a | 12.57 | 0.000 | 67.33a | 64.17 | 0.003 | 59.59 | 60.30 | 0.425 | 60.71 | 60.85 | 0.867 |
Midwest | 54.26 | 54.36 | 0.875 | 15.24a | 10.30 | 0.000 | 65.07a | 61.88 | 0.001 | 57.42 | 58.48 | 0.171 | 58.55 | 58.97 | 0.556 |
South | 47.74b | 48.85 | 0.079 | 13.75a | 9.74 | 0.000 | 57.62 | 56.16 | 0.121 | 50.43a | 52.42 | 0.007 | 51.47a | 52.95 | 0.033 |
West | 51.78 | 52.07 | 0.708 | 14.56a | 10.76 | 0.000 | 59.40a | 56.92 | 0.026 | 55.40 | 56.30 | 0.322 | 56.01 | 56.39 | 0.651 |
Alabama | 42.94 | 43.94 | 0.596 | 12.70a | 8.76 | 0.002 | 54.41 | 51.99 | 0.361 | 44.84 | 46.83 | 0.398 | 46.22 | 47.57 | 0.517 |
Alaska | 54.52 | 54.98 | 0.801 | 14.22b | 11.04 | 0.089 | 60.50 | 62.57 | 0.448 | 59.37 | 59.45 | 0.971 | 59.54 | 59.95 | 0.839 |
Arizona | 51.15 | 51.19 | 0.982 | 14.80a | 10.45 | 0.005 | 59.35 | 56.38 | 0.268 | 54.60 | 55.47 | 0.709 | 55.29 | 55.60 | 0.880 |
Arkansas | 43.29 | 41.81 | 0.440 | 15.34a | 9.34 | 0.000 | 55.94b | 51.60 | 0.100 | 44.80 | 44.20 | 0.801 | 46.36 | 45.26 | 0.605 |
California | 50.65 | 51.54 | 0.418 | 14.11a | 10.92 | 0.001 | 59.79b | 56.85 | 0.064 | 53.99 | 55.58 | 0.247 | 54.92 | 55.77 | 0.487 |
Colorado | 62.22 | 59.22 | 0.103 | 20.22a | 12.55 | 0.000 | 69.51 | 67.56 | 0.435 | 66.11 | 63.39 | 0.228 | 66.60 | 63.99 | 0.194 |
Connecticut | 59.32 | 60.33 | 0.608 | 18.56a | 13.61 | 0.010 | 67.86 | 67.18 | 0.800 | 63.08 | 64.76 | 0.481 | 63.73 | 65.09 | 0.523 |
Delaware | 56.32 | 53.85 | 0.223 | 16.35a | 10.36 | 0.000 | 68.53a | 62.37 | 0.012 | 59.18 | 57.29 | 0.451 | 60.52 | 57.99 | 0.254 |
District of Columbia | 61.55a | 69.07 | 0.000 | 15.63 | 13.18 | 0.205 | 71.82 | 74.21 | 0.342 | 63.53a | 71.86 | 0.000 | 65.04a | 72.27 | 0.000 |
Florida | 51.41a | 54.83 | 0.005 | 15.30a | 10.72 | 0.000 | 56.91 | 58.85 | 0.236 | 54.58a | 58.76 | 0.005 | 54.88a | 58.77 | 0.004 |
Georgia | 48.89 | 48.90 | 0.997 | 13.56a | 8.93 | 0.000 | 58.18 | 55.06 | 0.203 | 52.19 | 53.15 | 0.662 | 53.06 | 53.43 | 0.847 |
Hawaii | 48.23 | 46.60 | 0.415 | 11.64 | 10.55 | 0.483 | 57.21 | 55.52 | 0.574 | 50.95 | 49.04 | 0.431 | 51.81 | 49.91 | 0.383 |
Idaho | 45.71 | 44.54 | 0.526 | 12.91b | 10.25 | 0.071 | 52.50b | 47.50 | 0.058 | 49.19 | 48.93 | 0.911 | 49.68 | 48.72 | 0.638 |
Illinois | 54.33 | 54.25 | 0.947 | 15.16a | 9.88 | 0.000 | 64.88a | 60.53 | 0.011 | 57.60 | 58.66 | 0.475 | 58.72 | 58.93 | 0.873 |
Indiana | 48.06 | 50.44 | 0.210 | 14.41a | 10.06 | 0.002 | 57.94 | 59.71 | 0.511 | 50.82 | 54.01 | 0.174 | 51.85 | 54.87 | 0.147 |
Iowa | 56.70 | 56.01 | 0.712 | 17.34a | 10.16 | 0.000 | 69.06 | 66.44 | 0.295 | 59.43 | 59.73 | 0.897 | 60.87 | 60.75 | 0.950 |
Kansas | 53.92 | 52.55 | 0.480 | 15.93a | 10.45 | 0.000 | 66.34a | 59.33 | 0.008 | 56.66 | 56.88 | 0.929 | 58.18 | 57.26 | 0.664 |
Kentucky | 38.74a | 42.63 | 0.047 | 12.21a | 8.24 | 0.003 | 50.64 | 50.69 | 0.985 | 40.10a | 45.39 | 0.028 | 41.52a | 46.14 | 0.031 |
Louisiana | 48.24 | 50.03 | 0.347 | 15.26a | 10.75 | 0.003 | 61.67 | 57.93 | 0.141 | 50.16 | 53.57 | 0.147 | 52.02 | 54.22 | 0.289 |
Maine | 55.07a | 60.41 | 0.009 | 14.57 | 12.47 | 0.187 | 65.34 | 66.34 | 0.705 | 58.08a | 64.39 | 0.010 | 58.97a | 64.62 | 0.010 |
Maryland | 54.24a | 58.38 | 0.044 | 14.02 | 12.09 | 0.221 | 61.74 | 62.62 | 0.753 | 58.09a | 63.07 | 0.047 | 58.62b | 63.01 | 0.051 |
Massachusetts | 61.54a | 57.91 | 0.050 | 16.89a | 12.21 | 0.006 | 72.39 | 69.15 | 0.194 | 64.83b | 60.89 | 0.083 | 65.97b | 62.11 | 0.055 |
Michigan | 54.65 | 53.89 | 0.531 | 14.56a | 10.69 | 0.000 | 63.73b | 60.77 | 0.074 | 58.39 | 57.96 | 0.775 | 59.17 | 58.37 | 0.554 |
Minnesota | 60.95 | 59.40 | 0.398 | 14.70a | 10.71 | 0.006 | 68.13 | 65.64 | 0.313 | 65.51 | 64.23 | 0.571 | 65.90 | 64.42 | 0.463 |
Mississippi | 40.39 | 39.52 | 0.655 | 12.70a | 8.78 | 0.003 | 52.99a | 46.93 | 0.027 | 41.96 | 42.22 | 0.916 | 43.68 | 42.94 | 0.733 |
Missouri | 50.15 | 50.78 | 0.754 | 13.92a | 9.83 | 0.004 | 61.01 | 59.32 | 0.522 | 52.95 | 54.27 | 0.598 | 54.09 | 54.99 | 0.686 |
Montana | 59.07 | 57.93 | 0.583 | 21.39a | 9.90 | 0.000 | 69.07a | 61.56 | 0.003 | 61.95 | 62.62 | 0.791 | 62.97 | 62.47 | 0.825 |
Nebraska | 53.59a | 57.43 | 0.042 | 13.81a | 8.88 | 0.001 | 64.98 | 62.82 | 0.415 | 56.67a | 62.68 | 0.011 | 57.99a | 62.70 | 0.024 |
Nevada | 54.47 | 52.81 | 0.422 | 15.29 | 13.67 | 0.343 | 60.32 | 56.81 | 0.196 | 58.63 | 56.85 | 0.486 | 58.85 | 56.84 | 0.378 |
New Hampshire | 63.98 | 63.63 | 0.847 | 17.83a | 13.12 | 0.005 | 74.97a | 68.92 | 0.015 | 67.91 | 68.27 | 0.871 | 68.85 | 68.36 | 0.803 |
New Jersey | 54.18 | 56.67 | 0.208 | 15.17 | 13.88 | 0.408 | 64.96 | 63.69 | 0.595 | 57.37 | 60.63 | 0.181 | 58.39 | 61.03 | 0.221 |
New Mexico | 47.59 | 47.02 | 0.769 | 15.62a | 9.40 | 0.000 | 57.11 | 55.79 | 0.625 | 50.05 | 50.25 | 0.933 | 51.15 | 51.06 | 0.967 |
New York | 55.72 | 54.60 | 0.346 | 16.83a | 12.57 | 0.000 | 66.32a | 61.51 | 0.003 | 58.57 | 58.01 | 0.700 | 59.75 | 58.51 | 0.343 |
North Carolina | 47.45 | 45.84 | 0.360 | 12.83a | 8.19 | 0.000 | 58.35 | 55.77 | 0.297 | 49.98 | 48.75 | 0.567 | 51.15 | 49.74 | 0.467 |
North Dakota | 57.80 | 58.79 | 0.589 | 18.98a | 11.85 | 0.000 | 71.80 | 70.20 | 0.508 | 59.46 | 61.51 | 0.379 | 61.71 | 63.11 | 0.483 |
Ohio | 51.67 | 52.56 | 0.461 | 14.99a | 10.33 | 0.000 | 65.37a | 61.18 | 0.016 | 54.08 | 56.28 | 0.139 | 55.67 | 56.97 | 0.335 |
Oklahoma | 45.62 | 46.04 | 0.839 | 13.86a | 10.22 | 0.017 | 59.12 | 57.68 | 0.606 | 47.31 | 48.58 | 0.616 | 49.13 | 49.95 | 0.712 |
Oregon | 59.77 | 58.85 | 0.634 | 17.75a | 11.68 | 0.000 | 66.69 | 63.02 | 0.145 | 63.58 | 63.31 | 0.908 | 64.00 | 63.28 | 0.729 |
Pennsylvania | 55.06 | 56.56 | 0.257 | 16.73a | 11.34 | 0.000 | 66.31 | 63.95 | 0.191 | 57.81 | 60.32 | 0.116 | 59.01 | 60.82 | 0.207 |
Rhode Island | 59.91 | 59.37 | 0.779 | 18.29a | 13.23 | 0.006 | 71.17a | 65.22 | 0.024 | 62.78 | 63.25 | 0.840 | 64.10 | 63.56 | 0.796 |
South Carolina | 45.89 | 46.17 | 0.885 | 12.45a | 8.87 | 0.005 | 53.32b | 58.59 | 0.053 | 48.82 | 48.44 | 0.875 | 49.46 | 49.88 | 0.842 |
South Dakota | 57.81 | 58.02 | 0.911 | 15.85a | 10.38 | 0.001 | 70.66 | 67.10 | 0.147 | 60.93 | 62.30 | 0.555 | 62.41 | 63.02 | 0.769 |
Tennessee | 41.06 | 43.44 | 0.217 | 11.39a | 8.17 | 0.011 | 53.40 | 51.08 | 0.391 | 42.77 | 46.37 | 0.127 | 44.18 | 47.04 | 0.177 |
Texas | 48.42 | 47.90 | 0.638 | 14.09a | 9.96 | 0.000 | 58.49a | 54.86 | 0.031 | 51.52 | 52.03 | 0.714 | 52.63 | 52.48 | 0.903 |
Utah | 28.11b | 31.31 | 0.088 | 6.73 | 5.44 | 0.283 | 32.09 | 34.77 | 0.377 | 30.72b | 35.04 | 0.076 | 30.98b | 34.99 | 0.059 |
Vermont | 60.28 | 60.67 | 0.848 | 18.40a | 13.16 | 0.003 | 73.56 | 70.65 | 0.246 | 62.87 | 63.80 | 0.707 | 64.37 | 64.82 | 0.838 |
Virginia | 50.79 | 51.77 | 0.584 | 13.10b | 10.65 | 0.059 | 60.21 | 60.66 | 0.855 | 53.83 | 55.06 | 0.574 | 54.75 | 55.86 | 0.571 |
Washington | 56.13 | 57.26 | 0.548 | 14.03a | 10.65 | 0.020 | 60.77 | 58.45 | 0.384 | 60.54 | 62.39 | 0.422 | 60.58 | 61.84 | 0.536 |
West Virginia | 38.17 | 41.28 | 0.140 | 13.23a | 9.97 | 0.025 | 53.45 | 56.06 | 0.350 | 38.66 | 42.29 | 0.153 | 40.53 | 44.08 | 0.120 |
Wisconsin | 61.78 | 60.36 | 0.451 | 18.62a | 11.25 | 0.000 | 71.81a | 66.26 | 0.022 | 65.42 | 65.19 | 0.922 | 66.34 | 65.34 | 0.629 |
Wyoming | 54.21 | 54.32 | 0.958 | 17.06a | 10.72 | 0.003 | 62.33 | 62.15 | 0.950 | 57.41 | 58.15 | 0.769 | 58.15 | 58.73 | 0.795 |
State | Alcohol Use in Past Month (2008-2009) |
Alcohol Use in Past Month (2014-2015) |
Alcohol Use in Past Month (P Value) |
---|---|---|---|
NOTE: State and census region estimates are based on a survey-weighted hierarchical Bayes estimation approach, with their p values being the Bayes significance levels for the null hypothesis of no change between the 2008-2009 and 2014-2015 population percentages. The "Total U.S." estimates, along with the p values, are based on design-based (direct) estimation methods. a Difference between the 2008-2009 and 2014-2015 population percentages is statistically significant at the 0.05 level. b Difference between the 2008-2009 and 2014-2015 population percentages is statistically significant at the 0.10 level. Source: SAMHSA, Center for Behavioral Health Statistics and Quality, National Survey on Drug Use and Health, 2008, 2009, 2014, and 2015 (2008 and 2009 Data – Revised March 2012). |
|||
Total U.S. | 26.83a | 21.57 | 0.000 |
Northeast | 30.69a | 25.98 | 0.000 |
Midwest | 27.60a | 22.00 | 0.000 |
South | 25.18a | 19.66 | 0.000 |
West | 25.76a | 21.01 | 0.000 |
Alabama | 23.65a | 18.19 | 0.001 |
Alaska | 25.51 | 23.91 | 0.420 |
Arizona | 24.59a | 19.25 | 0.003 |
Arkansas | 23.06a | 16.65 | 0.000 |
California | 25.24a | 21.21 | 0.000 |
Colorado | 32.89a | 24.83 | 0.000 |
Connecticut | 31.02b | 27.67 | 0.097 |
Delaware | 32.60a | 23.46 | 0.000 |
District of Columbia | 31.66 | 31.34 | 0.893 |
Florida | 26.62a | 21.20 | 0.000 |
Georgia | 24.21a | 18.12 | 0.000 |
Hawaii | 23.87b | 20.57 | 0.076 |
Idaho | 23.93a | 16.80 | 0.000 |
Illinois | 28.38a | 21.46 | 0.000 |
Indiana | 23.50 | 20.97 | 0.138 |
Iowa | 29.93a | 24.57 | 0.003 |
Kansas | 28.91a | 21.41 | 0.000 |
Kentucky | 23.65a | 17.91 | 0.001 |
Louisiana | 29.69a | 23.73 | 0.001 |
Maine | 26.61 | 25.68 | 0.610 |
Maryland | 26.66b | 23.50 | 0.073 |
Massachusetts | 32.97b | 29.63 | 0.082 |
Michigan | 26.72a | 21.21 | 0.000 |
Minnesota | 27.61a | 23.01 | 0.009 |
Mississippi | 24.28a | 17.73 | 0.000 |
Missouri | 24.24a | 20.22 | 0.019 |
Montana | 34.33a | 21.31 | 0.000 |
Nebraska | 26.45a | 21.63 | 0.007 |
Nevada | 24.63 | 23.67 | 0.600 |
New Hampshire | 34.84a | 27.78 | 0.000 |
New Jersey | 27.22 | 25.97 | 0.449 |
New Mexico | 25.80a | 19.40 | 0.000 |
New York | 32.01a | 24.72 | 0.000 |
North Carolina | 22.42a | 16.96 | 0.000 |
North Dakota | 36.44a | 31.34 | 0.015 |
Ohio | 28.41a | 22.09 | 0.000 |
Oklahoma | 25.90a | 19.63 | 0.000 |
Oregon | 31.36a | 23.57 | 0.000 |
Pennsylvania | 29.02a | 24.79 | 0.001 |
Rhode Island | 34.78a | 28.02 | 0.001 |
South Carolina | 21.88 | 19.39 | 0.127 |
South Dakota | 32.31a | 25.57 | 0.000 |
Tennessee | 20.16 | 17.66 | 0.122 |
Texas | 26.46a | 19.49 | 0.000 |
Utah | 14.34a | 10.75 | 0.036 |
Vermont | 36.53a | 30.60 | 0.003 |
Virginia | 25.83a | 20.87 | 0.001 |
Washington | 27.00a | 22.67 | 0.014 |
West Virginia | 22.75 | 21.89 | 0.630 |
Wisconsin | 30.83a | 23.86 | 0.000 |
Wyoming | 30.54a | 21.59 | 0.000 |
State | 12+ (2008-2009) |
12+ (2014-2015) |
12+ (P Value) |
12-17 (2008-2009) |
12-17 (2014-2015) |
12-17 (P Value) |
18-25 (2008-2009) |
18-25 (2014-2015) |
18-25 (P Value) |
26+ (2008-2009) |
26+ (2014-2015) |
26+ (P Value) |
18+ (2008-2009) |
18+ (2014-2015) |
18+ (P Value) |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
NOTE: State and census region estimates are based on a survey-weighted hierarchical Bayes estimation approach, with their p values being the Bayes significance levels for the null hypothesis of no change between the 2008-2009 and 2014-2015 population percentages. The "Total U.S." estimates, along with the p values, are based on design-based (direct) estimation methods. NOTE: Tobacco Products include cigarettes, smokeless tobacco (i.e., snuff, dip, chewing tobacco, or "snus"), cigars, or pipe tobacco. a Difference between the 2008-2009 and 2014-2015 population percentages is statistically significant at the 0.05 level. b Difference between the 2008-2009 and 2014-2015 population percentages is statistically significant at the 0.10 level. Source: SAMHSA, Center for Behavioral Health Statistics and Quality, National Survey on Drug Use and Health, 2008, 2009, 2014, and 2015 (2008 and 2009 Data – Revised March 2012). |
|||||||||||||||
Total U.S. | 28.06a | 24.56 | 0.000 | 11.64a | 6.50 | 0.000 | 41.53a | 34.02 | 0.000 | 27.85a | 25.14 | 0.000 | 29.86a | 26.42 | 0.000 |
Northeast | 26.45a | 23.30 | 0.000 | 11.37a | 6.22 | 0.000 | 41.23a | 32.89 | 0.000 | 25.78a | 23.62 | 0.004 | 28.01a | 24.92 | 0.000 |
Midwest | 30.55a | 27.39 | 0.000 | 13.24a | 7.68 | 0.000 | 46.33a | 38.61 | 0.000 | 30.06a | 27.90 | 0.001 | 32.45a | 29.46 | 0.000 |
South | 29.54a | 26.24 | 0.000 | 11.53a | 6.67 | 0.000 | 41.69a | 35.33 | 0.000 | 29.79a | 27.11 | 0.000 | 31.51a | 28.29 | 0.000 |
West | 24.67a | 20.29 | 0.000 | 10.55a | 5.35 | 0.000 | 37.12a | 28.78 | 0.000 | 24.31a | 20.65 | 0.000 | 26.27a | 21.86 | 0.000 |
Alabama | 32.94 | 30.46 | 0.119 | 13.26a | 7.78 | 0.000 | 45.41 | 42.27 | 0.199 | 33.33 | 31.21 | 0.281 | 35.08 | 32.80 | 0.191 |
Alaska | 29.41 | 31.51 | 0.202 | 13.46a | 9.87 | 0.021 | 44.60 | 42.61 | 0.459 | 28.91 | 32.30 | 0.102 | 31.40 | 33.96 | 0.159 |
Arizona | 25.71a | 22.51 | 0.034 | 10.17a | 6.18 | 0.001 | 39.80a | 31.23 | 0.001 | 25.39 | 23.09 | 0.208 | 27.48b | 24.28 | 0.054 |
Arkansas | 35.26 | 34.05 | 0.489 | 14.99a | 9.67 | 0.000 | 47.74a | 41.50 | 0.016 | 35.81 | 35.83 | 0.994 | 37.48 | 36.64 | 0.664 |
California | 22.79a | 17.94 | 0.000 | 9.47a | 4.29 | 0.000 | 34.37a | 25.84 | 0.000 | 22.43a | 18.20 | 0.000 | 24.35a | 19.36 | 0.000 |
Colorado | 27.37 | 24.92 | 0.117 | 13.30a | 7.02 | 0.000 | 43.67a | 36.39 | 0.006 | 26.37 | 25.12 | 0.513 | 28.84 | 26.75 | 0.220 |
Connecticut | 25.34a | 21.88 | 0.027 | 11.01a | 6.39 | 0.000 | 41.49a | 35.71 | 0.031 | 24.58b | 21.47 | 0.100 | 26.89a | 23.46 | 0.045 |
Delaware | 30.13a | 26.35 | 0.022 | 13.07a | 6.77 | 0.000 | 45.53a | 37.20 | 0.001 | 29.65 | 26.76 | 0.150 | 31.92a | 28.21 | 0.039 |
District of Columbia | 27.62b | 24.77 | 0.078 | 9.48a | 5.01 | 0.000 | 34.96 | 30.75 | 0.102 | 27.66 | 24.88 | 0.156 | 28.99b | 25.89 | 0.071 |
Florida | 26.78a | 22.65 | 0.000 | 10.61a | 5.17 | 0.000 | 38.36a | 29.75 | 0.000 | 26.85a | 23.40 | 0.004 | 28.33a | 24.21 | 0.000 |
Georgia | 28.86a | 26.02 | 0.049 | 11.68a | 6.10 | 0.000 | 40.80a | 35.21 | 0.014 | 29.20 | 27.07 | 0.238 | 30.89 | 28.28 | 0.102 |
Hawaii | 22.31a | 19.21 | 0.039 | 9.93a | 5.09 | 0.000 | 37.26a | 28.22 | 0.001 | 21.32 | 19.31 | 0.264 | 23.51b | 20.50 | 0.064 |
Idaho | 26.80a | 22.03 | 0.001 | 10.75a | 7.15 | 0.005 | 39.73a | 31.66 | 0.001 | 26.82a | 22.50 | 0.014 | 28.75a | 23.84 | 0.002 |
Illinois | 29.01a | 23.94 | 0.000 | 12.45a | 5.93 | 0.000 | 44.24a | 34.27 | 0.000 | 28.44a | 24.43 | 0.001 | 30.87a | 25.84 | 0.000 |
Indiana | 31.88 | 30.83 | 0.522 | 13.97a | 9.05 | 0.000 | 46.31 | 42.65 | 0.146 | 31.80 | 31.55 | 0.902 | 33.89 | 33.22 | 0.708 |
Iowa | 30.23a | 26.97 | 0.035 | 12.41a | 9.12 | 0.021 | 44.08a | 37.25 | 0.007 | 30.01 | 27.30 | 0.156 | 32.12a | 28.81 | 0.050 |
Kansas | 30.69a | 24.70 | 0.000 | 13.11a | 7.75 | 0.000 | 47.46a | 34.60 | 0.000 | 29.91a | 25.14 | 0.015 | 32.67a | 26.60 | 0.000 |
Kentucky | 38.08a | 34.47 | 0.049 | 16.82a | 10.40 | 0.000 | 52.70a | 44.58 | 0.002 | 38.37 | 35.66 | 0.226 | 40.31b | 36.93 | 0.092 |
Louisiana | 30.67 | 31.06 | 0.812 | 10.72a | 7.92 | 0.026 | 41.06 | 39.93 | 0.652 | 31.40 | 32.41 | 0.618 | 32.96 | 33.53 | 0.749 |
Maine | 29.82a | 24.47 | 0.001 | 12.13a | 8.43 | 0.006 | 47.65a | 38.26 | 0.001 | 29.28a | 24.18 | 0.011 | 31.52a | 25.87 | 0.002 |
Maryland | 23.84 | 23.79 | 0.972 | 9.04a | 6.05 | 0.007 | 35.70 | 33.98 | 0.515 | 23.72 | 24.21 | 0.802 | 25.46 | 25.56 | 0.954 |
Massachusetts | 25.06a | 20.76 | 0.003 | 10.50a | 5.98 | 0.000 | 41.42a | 32.06 | 0.000 | 23.85a | 20.38 | 0.048 | 26.50a | 22.12 | 0.005 |
Michigan | 30.47a | 27.19 | 0.002 | 12.88a | 7.57 | 0.000 | 45.86a | 37.86 | 0.000 | 30.17b | 27.74 | 0.065 | 32.45a | 29.23 | 0.005 |
Minnesota | 27.59 | 25.28 | 0.130 | 12.49a | 6.68 | 0.000 | 47.57a | 35.55 | 0.000 | 26.07 | 25.86 | 0.910 | 29.20 | 27.20 | 0.229 |
Mississippi | 31.60 | 31.79 | 0.911 | 12.10a | 8.92 | 0.024 | 43.29b | 38.62 | 0.078 | 32.19 | 33.56 | 0.502 | 33.92 | 34.33 | 0.819 |
Missouri | 32.65 | 30.80 | 0.269 | 14.57a | 9.28 | 0.000 | 47.19 | 44.22 | 0.243 | 32.55 | 31.14 | 0.490 | 34.62 | 33.01 | 0.380 |
Montana | 31.17a | 27.37 | 0.022 | 15.59a | 9.50 | 0.000 | 49.20a | 40.70 | 0.001 | 30.03 | 27.14 | 0.150 | 32.78a | 29.06 | 0.038 |
Nebraska | 29.00 | 27.29 | 0.290 | 12.29a | 7.47 | 0.000 | 42.14b | 37.69 | 0.085 | 28.71 | 27.97 | 0.711 | 30.85 | 29.45 | 0.429 |
Nevada | 28.44a | 24.76 | 0.029 | 11.98a | 6.94 | 0.000 | 40.40a | 32.72 | 0.003 | 28.78 | 25.65 | 0.130 | 30.28a | 26.60 | 0.047 |
New Hampshire | 28.12a | 24.94 | 0.042 | 12.55a | 8.40 | 0.001 | 45.16a | 39.58 | 0.029 | 27.40 | 24.42 | 0.113 | 29.76b | 26.49 | 0.054 |
New Jersey | 24.81a | 20.74 | 0.007 | 9.81a | 5.33 | 0.000 | 38.34a | 30.95 | 0.001 | 24.58b | 21.00 | 0.053 | 26.42a | 22.31 | 0.013 |
New Mexico | 26.72b | 24.15 | 0.086 | 12.82a | 6.26 | 0.000 | 42.62a | 35.47 | 0.007 | 25.62 | 24.46 | 0.527 | 28.26 | 26.07 | 0.181 |
New York | 24.57 | 23.17 | 0.149 | 10.73a | 5.70 | 0.000 | 39.13a | 29.47 | 0.000 | 23.64 | 24.00 | 0.760 | 26.00 | 24.80 | 0.253 |
North Carolina | 31.32a | 25.73 | 0.000 | 12.01a | 5.96 | 0.000 | 43.70a | 35.77 | 0.001 | 31.72a | 26.46 | 0.003 | 33.38a | 27.78 | 0.000 |
North Dakota | 30.37 | 30.36 | 0.995 | 13.46a | 9.83 | 0.016 | 46.39 | 42.38 | 0.108 | 28.87 | 29.98 | 0.575 | 32.07 | 32.24 | 0.919 |
Ohio | 32.29b | 30.22 | 0.056 | 14.11a | 7.86 | 0.000 | 49.54a | 42.54 | 0.000 | 31.76 | 30.93 | 0.533 | 34.27 | 32.55 | 0.147 |
Oklahoma | 34.82 | 32.12 | 0.135 | 13.78a | 10.22 | 0.032 | 48.56a | 42.71 | 0.030 | 35.07 | 33.06 | 0.366 | 37.14 | 34.51 | 0.183 |
Oregon | 30.12a | 22.53 | 0.000 | 14.94a | 7.01 | 0.000 | 45.09a | 34.16 | 0.000 | 29.56a | 22.41 | 0.000 | 31.65a | 23.99 | 0.000 |
Pennsylvania | 30.97a | 26.54 | 0.000 | 13.84a | 7.24 | 0.000 | 45.29a | 37.54 | 0.000 | 30.67a | 26.89 | 0.005 | 32.74a | 28.36 | 0.000 |
Rhode Island | 26.34b | 23.45 | 0.072 | 10.30a | 5.86 | 0.000 | 41.51a | 34.58 | 0.013 | 25.41 | 23.29 | 0.272 | 27.95b | 25.05 | 0.096 |
South Carolina | 31.30b | 28.49 | 0.086 | 11.78a | 7.11 | 0.000 | 44.29 | 40.56 | 0.141 | 31.59 | 28.98 | 0.191 | 33.37 | 30.62 | 0.122 |
South Dakota | 31.32a | 28.05 | 0.039 | 14.94a | 9.20 | 0.000 | 49.54a | 41.55 | 0.001 | 30.16 | 28.00 | 0.265 | 33.12b | 30.02 | 0.073 |
Tennessee | 33.55a | 28.66 | 0.004 | 12.46a | 7.85 | 0.000 | 46.98a | 39.75 | 0.004 | 34.05a | 29.31 | 0.021 | 35.77a | 30.79 | 0.007 |
Texas | 27.05a | 23.12 | 0.000 | 10.01a | 5.74 | 0.000 | 38.36a | 31.14 | 0.000 | 27.41a | 24.13 | 0.005 | 29.15a | 25.22 | 0.000 |
Utah | 18.44a | 15.39 | 0.030 | 6.72a | 3.70 | 0.005 | 24.94a | 19.63 | 0.033 | 18.80 | 16.49 | 0.193 | 20.02b | 17.06 | 0.059 |
Vermont | 27.61 | 27.42 | 0.909 | 12.66a | 8.13 | 0.001 | 44.28 | 42.38 | 0.481 | 26.58 | 26.78 | 0.921 | 29.07 | 29.10 | 0.986 |
Virginia | 27.48b | 25.04 | 0.090 | 11.74a | 6.06 | 0.000 | 41.54a | 34.37 | 0.002 | 27.03 | 25.68 | 0.450 | 29.13 | 26.92 | 0.162 |
Washington | 26.86a | 22.09 | 0.001 | 11.87a | 6.32 | 0.000 | 41.46a | 31.00 | 0.000 | 26.35a | 22.46 | 0.027 | 28.44a | 23.65 | 0.002 |
West Virginia | 38.41 | 37.40 | 0.602 | 16.88a | 12.55 | 0.009 | 54.20 | 50.84 | 0.205 | 38.44 | 37.93 | 0.827 | 40.43 | 39.62 | 0.697 |
Wisconsin | 30.21a | 25.37 | 0.002 | 12.88a | 7.96 | 0.000 | 45.41a | 36.14 | 0.000 | 29.79a | 25.64 | 0.034 | 32.04a | 27.13 | 0.005 |
Wyoming | 34.32b | 31.00 | 0.064 | 18.41a | 10.59 | 0.000 | 49.70a | 42.10 | 0.005 | 33.58 | 31.53 | 0.351 | 36.01 | 33.06 | 0.133 |
State | 12+ (2008-2009) |
12+ (2014-2015) |
12+ (P Value) |
12-17 (2008-2009) |
12-17 (2014-2015) |
12-17 (P Value) |
18-25 (2008-2009) |
18-25 (2014-2015) |
18-25 (P Value) |
26+ (2008-2009) |
26+ (2014-2015) |
26+ (P Value) |
18+ (2008-2009) |
18+ (2014-2015) |
18+ (P Value) |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
NOTE: State and census region estimates are based on a survey-weighted hierarchical Bayes estimation approach, with their p values being the Bayes significance levels for the null hypothesis of no change between the 2008-2009 and 2014-2015 population percentages. The "Total U.S." estimates, along with the p values, are based on design-based (direct) estimation methods. a Difference between the 2008-2009 and 2014-2015 population percentages is statistically significant at the 0.05 level. b Difference between the 2008-2009 and 2014-2015 population percentages is statistically significant at the 0.10 level. Source: SAMHSA, Center for Behavioral Health Statistics and Quality, National Survey on Drug Use and Health, 2008, 2009, 2014, and 2015 (2008 and 2009 Data – Revised March 2012). |
|||||||||||||||
Total U.S. | 23.63a | 20.12 | 0.000 | 9.09a | 4.53 | 0.000 | 35.80a | 27.54 | 0.000 | 23.40a | 20.74 | 0.000 | 25.23a | 21.72 | 0.000 |
Northeast | 22.40a | 19.13 | 0.000 | 8.82a | 4.37 | 0.000 | 35.95a | 26.89 | 0.000 | 21.75a | 19.48 | 0.001 | 23.81a | 20.53 | 0.000 |
Midwest | 25.66a | 22.50 | 0.000 | 10.45a | 5.55 | 0.000 | 39.92a | 30.61 | 0.000 | 25.16a | 23.20 | 0.002 | 27.33a | 24.28 | 0.000 |
South | 24.80a | 21.41 | 0.000 | 9.12a | 4.50 | 0.000 | 35.96a | 28.57 | 0.000 | 24.92a | 22.28 | 0.000 | 26.52a | 23.19 | 0.000 |
West | 20.86a | 16.66 | 0.000 | 7.97a | 3.75 | 0.000 | 31.69a | 23.72 | 0.000 | 20.62a | 17.02 | 0.000 | 22.32a | 18.01 | 0.000 |
Alabama | 26.82b | 24.25 | 0.096 | 10.40a | 5.34 | 0.000 | 38.16b | 34.00 | 0.097 | 26.98 | 24.89 | 0.269 | 28.60 | 26.20 | 0.157 |
Alaska | 24.21 | 24.64 | 0.781 | 9.37a | 6.02 | 0.005 | 38.26 | 35.38 | 0.281 | 23.78 | 25.09 | 0.493 | 26.07 | 26.74 | 0.690 |
Arizona | 21.97a | 19.23 | 0.044 | 8.70a | 4.15 | 0.000 | 33.07a | 25.33 | 0.002 | 21.85 | 20.10 | 0.297 | 23.48b | 20.87 | 0.082 |
Arkansas | 30.28 | 27.81 | 0.127 | 12.05a | 6.35 | 0.000 | 42.83a | 32.28 | 0.000 | 30.56 | 29.73 | 0.682 | 32.28 | 30.10 | 0.221 |
California | 19.28a | 14.82 | 0.000 | 7.05a | 3.09 | 0.000 | 29.58a | 21.90 | 0.000 | 19.02a | 15.00 | 0.000 | 20.71a | 16.05 | 0.000 |
Colorado | 22.33b | 19.71 | 0.061 | 9.69a | 4.84 | 0.000 | 36.42a | 29.65 | 0.007 | 21.52 | 19.80 | 0.320 | 23.65 | 21.23 | 0.115 |
Connecticut | 21.47a | 17.56 | 0.006 | 8.67a | 4.50 | 0.000 | 36.51a | 30.39 | 0.020 | 20.69a | 17.03 | 0.034 | 22.85a | 18.89 | 0.011 |
Delaware | 25.41b | 22.46 | 0.058 | 9.74a | 4.85 | 0.000 | 39.95a | 31.48 | 0.001 | 24.90 | 22.95 | 0.306 | 27.05b | 24.13 | 0.087 |
District of Columbia | 23.85a | 19.87 | 0.008 | 6.30a | 3.02 | 0.000 | 30.11a | 23.86 | 0.008 | 24.08a | 20.21 | 0.034 | 25.17a | 20.83 | 0.007 |
Florida | 22.66a | 18.89 | 0.000 | 8.30a | 3.56 | 0.000 | 32.61a | 23.66 | 0.000 | 22.76a | 19.75 | 0.009 | 24.03a | 20.26 | 0.000 |
Georgia | 24.48a | 20.37 | 0.002 | 8.95a | 3.76 | 0.000 | 35.71a | 26.61 | 0.000 | 24.72b | 21.50 | 0.056 | 26.32a | 22.26 | 0.006 |
Hawaii | 20.24a | 16.53 | 0.008 | 7.60a | 3.13 | 0.000 | 34.07a | 23.98 | 0.000 | 19.46 | 16.79 | 0.113 | 21.47a | 17.76 | 0.015 |
Idaho | 23.14a | 17.71 | 0.000 | 9.05a | 5.04 | 0.000 | 35.00a | 23.99 | 0.000 | 23.07a | 18.45 | 0.006 | 24.85a | 19.26 | 0.000 |
Illinois | 24.93a | 20.44 | 0.000 | 10.01a | 4.40 | 0.000 | 38.97a | 28.80 | 0.000 | 24.37a | 21.02 | 0.006 | 26.60a | 22.14 | 0.000 |
Indiana | 26.78 | 25.91 | 0.564 | 10.84a | 6.74 | 0.001 | 40.95a | 35.13 | 0.026 | 26.49 | 26.75 | 0.892 | 28.58 | 28.01 | 0.735 |
Iowa | 24.90a | 21.27 | 0.011 | 10.17a | 5.99 | 0.000 | 37.13a | 28.75 | 0.001 | 24.58 | 21.79 | 0.113 | 26.46a | 22.85 | 0.022 |
Kansas | 25.04a | 18.93 | 0.000 | 10.80a | 4.77 | 0.000 | 39.71a | 24.75 | 0.000 | 24.19a | 19.75 | 0.011 | 26.63a | 20.52 | 0.000 |
Kentucky | 31.94b | 28.79 | 0.057 | 12.44a | 7.77 | 0.000 | 44.22a | 37.23 | 0.007 | 32.38 | 29.89 | 0.224 | 33.98b | 30.94 | 0.094 |
Louisiana | 26.54 | 26.44 | 0.950 | 8.41a | 5.82 | 0.014 | 36.03 | 33.60 | 0.331 | 27.20 | 27.78 | 0.773 | 28.62 | 28.65 | 0.988 |
Maine | 25.64a | 20.71 | 0.002 | 9.72a | 6.12 | 0.001 | 42.51a | 29.53 | 0.000 | 25.03a | 20.95 | 0.029 | 27.17a | 21.99 | 0.002 |
Maryland | 19.82 | 19.07 | 0.614 | 7.61a | 3.93 | 0.000 | 31.15a | 25.71 | 0.027 | 19.45 | 19.76 | 0.867 | 21.15 | 20.58 | 0.729 |
Massachusetts | 20.99a | 16.66 | 0.001 | 7.63a | 4.11 | 0.000 | 34.67a | 25.91 | 0.001 | 20.13a | 16.40 | 0.019 | 22.32a | 17.81 | 0.002 |
Michigan | 26.12a | 22.31 | 0.000 | 10.34a | 5.17 | 0.000 | 39.79a | 28.83 | 0.000 | 25.87a | 23.27 | 0.031 | 27.89a | 24.09 | 0.000 |
Minnesota | 23.49a | 19.50 | 0.004 | 9.72a | 4.69 | 0.000 | 41.01a | 26.81 | 0.000 | 22.22 | 20.09 | 0.209 | 24.96a | 21.02 | 0.010 |
Mississippi | 26.35 | 25.34 | 0.511 | 9.66a | 5.59 | 0.000 | 36.57a | 31.20 | 0.031 | 26.82 | 26.88 | 0.976 | 28.34 | 27.54 | 0.640 |
Missouri | 26.31 | 25.09 | 0.433 | 10.98a | 6.95 | 0.001 | 39.48 | 35.67 | 0.141 | 26.09 | 25.49 | 0.759 | 27.98 | 26.96 | 0.549 |
Montana | 24.75a | 19.65 | 0.001 | 11.24a | 6.29 | 0.000 | 39.49a | 28.78 | 0.000 | 23.91a | 19.61 | 0.021 | 26.14a | 20.92 | 0.002 |
Nebraska | 24.27 | 21.95 | 0.116 | 9.36a | 5.10 | 0.000 | 36.05a | 27.92 | 0.001 | 24.00 | 23.04 | 0.603 | 25.91 | 23.78 | 0.191 |
Nevada | 24.45b | 21.25 | 0.053 | 9.44a | 4.40 | 0.000 | 33.92a | 27.51 | 0.009 | 24.97 | 22.29 | 0.184 | 26.13b | 22.99 | 0.085 |
New Hampshire | 23.36a | 19.70 | 0.009 | 10.23a | 5.92 | 0.000 | 39.18a | 30.47 | 0.000 | 22.53b | 19.49 | 0.074 | 24.74a | 20.99 | 0.014 |
New Jersey | 20.88a | 16.69 | 0.002 | 7.59a | 3.51 | 0.000 | 35.13a | 24.71 | 0.000 | 20.33a | 17.02 | 0.044 | 22.32a | 18.03 | 0.003 |
New Mexico | 22.74b | 20.32 | 0.098 | 10.06a | 4.11 | 0.000 | 36.12a | 30.09 | 0.016 | 21.95 | 20.68 | 0.485 | 24.15 | 22.05 | 0.195 |
New York | 21.30b | 19.55 | 0.058 | 8.21a | 4.13 | 0.000 | 34.38a | 25.24 | 0.000 | 20.55 | 20.26 | 0.807 | 22.66b | 20.99 | 0.098 |
North Carolina | 26.45a | 21.17 | 0.000 | 9.16a | 4.35 | 0.000 | 37.96a | 29.37 | 0.000 | 26.73a | 21.85 | 0.004 | 28.30a | 22.92 | 0.000 |
North Dakota | 24.70 | 23.93 | 0.602 | 10.42a | 7.31 | 0.011 | 36.38a | 31.27 | 0.033 | 23.86 | 24.17 | 0.866 | 26.14 | 25.46 | 0.672 |
Ohio | 26.71 | 25.26 | 0.156 | 10.93a | 5.98 | 0.000 | 41.85a | 33.72 | 0.000 | 26.23 | 26.22 | 0.997 | 28.43 | 27.27 | 0.300 |
Oklahoma | 28.24b | 25.50 | 0.094 | 11.31a | 6.18 | 0.000 | 41.18a | 34.03 | 0.007 | 28.10 | 26.48 | 0.428 | 30.11 | 27.61 | 0.167 |
Oregon | 25.01a | 18.00 | 0.000 | 10.32a | 5.25 | 0.000 | 37.51a | 26.99 | 0.000 | 24.78a | 17.99 | 0.000 | 26.49a | 19.20 | 0.000 |
Pennsylvania | 25.69a | 21.55 | 0.000 | 11.13a | 5.03 | 0.000 | 38.72a | 29.58 | 0.000 | 25.30a | 22.07 | 0.011 | 27.19a | 23.11 | 0.000 |
Rhode Island | 22.58a | 19.18 | 0.024 | 7.93a | 4.38 | 0.000 | 35.37a | 27.31 | 0.003 | 21.93 | 19.27 | 0.147 | 24.05a | 20.52 | 0.031 |
South Carolina | 26.94a | 23.42 | 0.016 | 9.52a | 4.69 | 0.000 | 37.73 | 34.05 | 0.150 | 27.33b | 23.83 | 0.053 | 28.80a | 25.28 | 0.029 |
South Dakota | 25.04a | 22.16 | 0.047 | 11.43a | 6.63 | 0.000 | 39.83a | 32.69 | 0.005 | 24.14 | 22.23 | 0.286 | 26.53b | 23.79 | 0.085 |
Tennessee | 28.20a | 22.75 | 0.000 | 9.69a | 5.32 | 0.000 | 39.48a | 30.33 | 0.000 | 28.71a | 23.57 | 0.007 | 30.14a | 24.53 | 0.001 |
Texas | 22.51a | 19.13 | 0.000 | 8.17a | 3.91 | 0.000 | 33.64a | 26.34 | 0.000 | 22.51a | 19.99 | 0.023 | 24.27a | 20.97 | 0.001 |
Utah | 16.42a | 13.44 | 0.021 | 5.39a | 3.34 | 0.023 | 22.29a | 16.99 | 0.029 | 16.83 | 14.43 | 0.150 | 17.91a | 14.88 | 0.038 |
Vermont | 22.31 | 21.98 | 0.828 | 8.73a | 6.20 | 0.022 | 38.02b | 33.55 | 0.098 | 21.29 | 21.58 | 0.876 | 23.64 | 23.36 | 0.867 |
Virginia | 23.23a | 20.11 | 0.017 | 9.56a | 3.92 | 0.000 | 35.65a | 28.12 | 0.001 | 22.79 | 20.65 | 0.182 | 24.66a | 21.72 | 0.041 |
Washington | 22.91a | 17.51 | 0.000 | 8.89a | 4.10 | 0.000 | 35.68a | 23.73 | 0.000 | 22.56a | 18.04 | 0.007 | 24.38a | 18.83 | 0.000 |
West Virginia | 30.76 | 29.77 | 0.568 | 13.14a | 8.29 | 0.000 | 47.13a | 40.10 | 0.011 | 30.30 | 30.41 | 0.956 | 32.42 | 31.68 | 0.698 |
Wisconsin | 25.74a | 20.60 | 0.000 | 10.57a | 5.90 | 0.000 | 40.34a | 29.13 | 0.000 | 25.15a | 20.93 | 0.018 | 27.35a | 22.10 | 0.001 |
Wyoming | 26.58 | 24.24 | 0.137 | 12.60a | 7.76 | 0.001 | 39.19a | 31.24 | 0.002 | 26.09 | 25.00 | 0.578 | 28.06 | 25.90 | 0.211 |
State | 12+ (2008-2009) |
12+ (2014-2015) |
12+ (P Value) |
12-17 (2008-2009) |
12-17 (2014-2015) |
12-17 (P Value) |
18-25 (2008-2009) |
18-25 (2014-2015) |
18-25 (P Value) |
26+ (2008-2009) |
26+ (2014-2015) |
26+ (P Value) |
18+ (2008-2009) |
18+ (2014-2015) |
18+ (P Value) |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
NOTE: State and census region estimates are based on a survey-weighted hierarchical Bayes estimation approach, with their p values being the Bayes significance levels for the null hypothesis of no change between the 2008-2009 and 2014-2015 population percentages. The "Total U.S." estimates, along with the p values, are based on design-based (direct) estimation methods. NOTE: Alcohol Use Disorder is defined as meeting criteria for alcohol dependence or abuse. Dependence or abuse is based on definitions found in the 4th edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV). a Difference between the 2008-2009 and 2014-2015 population percentages is statistically significant at the 0.05 level. b Difference between the 2008-2009 and 2014-2015 population percentages is statistically significant at the 0.10 level. Source: SAMHSA, Center for Behavioral Health Statistics and Quality, National Survey on Drug Use and Health, 2008, 2009, 2014, and 2015 (2008 and 2009 Data – Revised March 2012). |
|||||||||||||||
Total U.S. | 7.42a | 6.14 | 0.000 | 4.76a | 2.62 | 0.000 | 16.76a | 11.61 | 0.000 | 6.16a | 5.64 | 0.005 | 7.72a | 6.51 | 0.000 |
Northeast | 7.42a | 6.39 | 0.000 | 4.73a | 2.72 | 0.000 | 17.81a | 12.31 | 0.000 | 5.99 | 5.82 | 0.592 | 7.70a | 6.73 | 0.001 |
Midwest | 7.84a | 6.25 | 0.000 | 5.14a | 2.52 | 0.000 | 18.24a | 12.45 | 0.000 | 6.39a | 5.66 | 0.008 | 8.13a | 6.64 | 0.000 |
South | 6.90a | 5.76 | 0.000 | 4.14a | 2.52 | 0.000 | 15.18a | 10.61 | 0.000 | 5.86a | 5.34 | 0.047 | 7.20a | 6.09 | 0.000 |
West | 7.86a | 6.47 | 0.000 | 5.37a | 2.78 | 0.000 | 16.97a | 11.88 | 0.000 | 6.54 | 5.99 | 0.119 | 8.14a | 6.86 | 0.000 |
Alabama | 6.40a | 4.64 | 0.004 | 4.12a | 2.17 | 0.002 | 13.75a | 9.65 | 0.004 | 5.45b | 4.10 | 0.064 | 6.65a | 4.90 | 0.008 |
Alaska | 8.06 | 7.43 | 0.431 | 5.31a | 2.55 | 0.000 | 16.94a | 12.30 | 0.007 | 6.80 | 7.16 | 0.707 | 8.40 | 7.99 | 0.636 |
Arizona | 7.73 | 6.66 | 0.145 | 5.40a | 2.90 | 0.002 | 18.24a | 12.36 | 0.001 | 6.26 | 6.15 | 0.900 | 8.00 | 7.06 | 0.243 |
Arkansas | 6.75a | 4.88 | 0.002 | 4.90a | 2.76 | 0.003 | 15.57a | 9.64 | 0.000 | 5.54 | 4.34 | 0.102 | 6.95a | 5.11 | 0.006 |
California | 7.87a | 6.55 | 0.003 | 5.27a | 2.73 | 0.000 | 16.36a | 11.85 | 0.000 | 6.61 | 6.07 | 0.327 | 8.18a | 6.95 | 0.013 |
Colorado | 8.97b | 7.47 | 0.070 | 6.32a | 3.20 | 0.000 | 21.03a | 12.56 | 0.000 | 7.28 | 7.13 | 0.873 | 9.25 | 7.91 | 0.135 |
Connecticut | 8.64a | 6.90 | 0.033 | 5.92a | 2.74 | 0.000 | 19.92a | 13.00 | 0.000 | 7.19 | 6.40 | 0.420 | 8.93b | 7.32 | 0.070 |
Delaware | 7.88a | 5.88 | 0.005 | 4.86a | 2.42 | 0.000 | 18.98a | 12.46 | 0.000 | 6.40 | 5.20 | 0.161 | 8.19a | 6.21 | 0.010 |
District of Columbia | 9.26 | 8.22 | 0.239 | 3.04 | 2.44 | 0.347 | 17.04a | 12.85 | 0.015 | 8.10 | 7.65 | 0.671 | 9.73 | 8.55 | 0.206 |
Florida | 6.93a | 5.91 | 0.036 | 4.33a | 2.69 | 0.001 | 14.60a | 10.30 | 0.000 | 6.08 | 5.60 | 0.408 | 7.18b | 6.19 | 0.061 |
Georgia | 6.68a | 5.48 | 0.050 | 3.38a | 2.18 | 0.022 | 15.02a | 10.55 | 0.001 | 5.72 | 5.03 | 0.353 | 7.07b | 5.86 | 0.070 |
Hawaii | 7.58a | 5.37 | 0.004 | 5.83a | 2.48 | 0.000 | 16.34a | 10.67 | 0.001 | 6.38b | 4.86 | 0.088 | 7.75a | 5.64 | 0.010 |
Idaho | 7.14b | 6.05 | 0.089 | 5.16a | 2.98 | 0.003 | 16.35a | 11.89 | 0.005 | 5.79 | 5.48 | 0.684 | 7.37 | 6.42 | 0.176 |
Illinois | 7.58a | 6.05 | 0.002 | 4.32a | 2.42 | 0.000 | 17.59a | 12.07 | 0.000 | 6.19 | 5.49 | 0.231 | 7.94a | 6.43 | 0.005 |
Indiana | 6.99 | 5.94 | 0.102 | 5.01a | 2.65 | 0.001 | 17.00a | 12.48 | 0.006 | 5.57 | 5.21 | 0.630 | 7.22 | 6.30 | 0.189 |
Iowa | 8.64a | 6.36 | 0.001 | 6.67a | 2.57 | 0.000 | 19.79a | 13.00 | 0.000 | 6.92 | 5.63 | 0.122 | 8.85a | 6.75 | 0.006 |
Kansas | 8.06a | 5.98 | 0.002 | 5.68a | 2.51 | 0.000 | 19.37a | 12.38 | 0.000 | 6.27 | 5.27 | 0.207 | 8.33a | 6.37 | 0.009 |
Kentucky | 5.98 | 5.61 | 0.572 | 3.83a | 2.36 | 0.020 | 14.21a | 10.14 | 0.008 | 4.95 | 5.25 | 0.691 | 6.20 | 5.95 | 0.714 |
Louisiana | 7.02 | 6.59 | 0.566 | 3.63b | 2.43 | 0.061 | 14.96a | 10.54 | 0.004 | 5.95 | 6.42 | 0.598 | 7.40 | 7.04 | 0.651 |
Maine | 6.76a | 5.33 | 0.032 | 4.06a | 2.52 | 0.021 | 17.72a | 12.07 | 0.001 | 5.52 | 4.69 | 0.276 | 7.01a | 5.57 | 0.045 |
Maryland | 7.05 | 6.57 | 0.528 | 3.70b | 2.56 | 0.080 | 15.17a | 11.25 | 0.015 | 6.10 | 6.28 | 0.846 | 7.42 | 6.97 | 0.591 |
Massachusetts | 7.42 | 6.70 | 0.310 | 4.74a | 2.98 | 0.022 | 18.97a | 12.58 | 0.000 | 5.68 | 6.07 | 0.636 | 7.68 | 7.04 | 0.400 |
Michigan | 7.63a | 5.66 | 0.000 | 4.90a | 2.63 | 0.000 | 16.79a | 11.49 | 0.000 | 6.43a | 5.02 | 0.015 | 7.93a | 5.97 | 0.000 |
Minnesota | 9.20a | 6.33 | 0.000 | 5.77a | 2.20 | 0.000 | 21.08a | 13.33 | 0.000 | 7.60a | 5.70 | 0.038 | 9.56a | 6.75 | 0.001 |
Mississippi | 6.29b | 5.15 | 0.071 | 3.68a | 2.17 | 0.011 | 13.24a | 8.90 | 0.002 | 5.38 | 4.86 | 0.499 | 6.60 | 5.48 | 0.106 |
Missouri | 7.63a | 6.14 | 0.032 | 5.15a | 2.28 | 0.000 | 17.62a | 12.57 | 0.003 | 6.29 | 5.53 | 0.344 | 7.90b | 6.54 | 0.072 |
Montana | 9.78a | 6.95 | 0.001 | 8.23a | 2.60 | 0.000 | 24.59a | 14.09 | 0.000 | 7.49 | 6.25 | 0.214 | 9.94a | 7.37 | 0.005 |
Nebraska | 8.50a | 6.85 | 0.035 | 5.65a | 2.33 | 0.000 | 19.05a | 13.25 | 0.001 | 6.88 | 6.28 | 0.521 | 8.81b | 7.34 | 0.083 |
Nevada | 7.61b | 6.25 | 0.060 | 5.40a | 3.02 | 0.004 | 16.76a | 11.71 | 0.002 | 6.53 | 5.79 | 0.394 | 7.86 | 6.58 | 0.106 |
New Hampshire | 7.50 | 7.20 | 0.704 | 5.09a | 2.68 | 0.001 | 19.31a | 14.12 | 0.007 | 5.98 | 6.59 | 0.511 | 7.75 | 7.62 | 0.880 |
New Jersey | 6.61 | 5.72 | 0.159 | 3.71 | 3.24 | 0.492 | 15.87a | 11.42 | 0.002 | 5.54 | 5.15 | 0.607 | 6.93 | 5.97 | 0.168 |
New Mexico | 8.64a | 6.82 | 0.024 | 6.64a | 2.59 | 0.000 | 18.71a | 12.05 | 0.000 | 7.05 | 6.46 | 0.548 | 8.86b | 7.28 | 0.070 |
New York | 7.88a | 6.41 | 0.002 | 5.31a | 2.51 | 0.000 | 18.10a | 11.59 | 0.000 | 6.36 | 5.95 | 0.486 | 8.15a | 6.77 | 0.009 |
North Carolina | 6.27b | 5.29 | 0.089 | 3.40a | 2.08 | 0.013 | 14.65a | 10.89 | 0.008 | 5.28 | 4.75 | 0.445 | 6.58 | 5.62 | 0.128 |
North Dakota | 8.38b | 7.06 | 0.078 | 5.29a | 2.96 | 0.005 | 20.61a | 13.19 | 0.000 | 6.03 | 6.15 | 0.891 | 8.69 | 7.44 | 0.120 |
Ohio | 7.62a | 6.47 | 0.021 | 5.19a | 2.45 | 0.000 | 17.80a | 11.66 | 0.000 | 6.26 | 6.11 | 0.808 | 7.89b | 6.89 | 0.068 |
Oklahoma | 7.55b | 6.18 | 0.054 | 4.96a | 2.11 | 0.000 | 16.78a | 11.04 | 0.001 | 6.21 | 5.84 | 0.664 | 7.84 | 6.63 | 0.118 |
Oregon | 8.54a | 6.92 | 0.040 | 6.33a | 3.05 | 0.000 | 18.71a | 12.48 | 0.000 | 7.22 | 6.49 | 0.429 | 8.76b | 7.29 | 0.080 |
Pennsylvania | 6.91 | 6.45 | 0.363 | 4.21a | 2.53 | 0.001 | 17.07a | 13.26 | 0.002 | 5.56 | 5.79 | 0.700 | 7.18 | 6.82 | 0.505 |
Rhode Island | 8.26 | 6.98 | 0.104 | 4.86a | 2.86 | 0.010 | 18.03a | 13.83 | 0.028 | 6.84 | 6.16 | 0.463 | 8.60 | 7.36 | 0.142 |
South Carolina | 7.90a | 5.94 | 0.007 | 3.98a | 2.56 | 0.027 | 16.24a | 10.50 | 0.000 | 7.03b | 5.57 | 0.100 | 8.32a | 6.27 | 0.010 |
South Dakota | 9.68a | 7.39 | 0.006 | 6.74a | 2.63 | 0.000 | 23.35a | 14.55 | 0.000 | 7.59 | 6.72 | 0.370 | 10.00a | 7.89 | 0.019 |
Tennessee | 6.18 | 5.29 | 0.162 | 3.28b | 2.18 | 0.057 | 14.18a | 10.43 | 0.011 | 5.30 | 4.81 | 0.521 | 6.48 | 5.61 | 0.205 |
Texas | 6.98a | 5.95 | 0.017 | 4.63a | 2.98 | 0.002 | 14.76a | 10.70 | 0.000 | 5.85 | 5.50 | 0.493 | 7.26a | 6.31 | 0.042 |
Utah | 6.07a | 4.79 | 0.040 | 3.31 | 2.26 | 0.113 | 12.42 | 9.85 | 0.110 | 4.96 | 4.08 | 0.236 | 6.44b | 5.15 | 0.063 |
Vermont | 7.84 | 6.95 | 0.234 | 4.92a | 2.75 | 0.004 | 20.15a | 15.50 | 0.016 | 6.16 | 5.89 | 0.759 | 8.12 | 7.32 | 0.315 |
Virginia | 8.04a | 5.76 | 0.000 | 5.07a | 2.19 | 0.000 | 19.44a | 11.43 | 0.000 | 6.47 | 5.23 | 0.105 | 8.35a | 6.12 | 0.001 |
Washington | 7.08a | 5.68 | 0.033 | 4.74a | 2.74 | 0.004 | 16.26a | 11.57 | 0.004 | 5.88 | 5.07 | 0.293 | 7.32b | 5.97 | 0.057 |
West Virginia | 6.54 | 5.49 | 0.118 | 4.45a | 2.87 | 0.027 | 15.43a | 11.46 | 0.012 | 5.48 | 4.87 | 0.439 | 6.73 | 5.73 | 0.160 |
Wisconsin | 8.06 | 7.33 | 0.343 | 5.43a | 3.06 | 0.004 | 19.67a | 14.57 | 0.005 | 6.43 | 6.64 | 0.821 | 8.34 | 7.76 | 0.488 |
Wyoming | 8.51a | 6.36 | 0.003 | 6.96a | 2.94 | 0.000 | 19.54a | 13.15 | 0.000 | 6.75 | 5.62 | 0.188 | 8.67a | 6.71 | 0.013 |
State | 12+ (2008-2009) |
12+ (2014-2015) |
12+ (P Value) |
12-17 (2008-2009) |
12-17 (2014-2015) |
12-17 (P Value) |
18-25 (2008-2009) |
18-25 (2014-2015) |
18-25 (P Value) |
26+ (2008-2009) |
26+ (2014-2015) |
26+ (P Value) |
18+ (2008-2009) |
18+ (2014-2015) |
18+ (P Value) |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
NOTE: State and census region estimates are based on a survey-weighted hierarchical Bayes estimation approach, with their p values being the Bayes significance levels for the null hypothesis of no change between the 2008-2009 and 2014-2015 population percentages. The "Total U.S." estimates, along with the p values, are based on design-based (direct) estimation methods. NOTE: Dependence is based on the definition found in the 4th edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV). a Difference between the 2008-2009 and 2014-2015 population percentages is statistically significant at the 0.05 level. b Difference between the 2008-2009 and 2014-2015 population percentages is statistically significant at the 0.10 level. Source: SAMHSA, Center for Behavioral Health Statistics and Quality, National Survey on Drug Use and Health, 2008, 2009, 2014, and 2015 (2008 and 2009 Data – Revised March 2012). |
|||||||||||||||
Total U.S. | 3.54a | 2.97 | 0.000 | 1.92a | 0.95 | 0.000 | 6.96a | 5.18 | 0.000 | 3.16a | 2.84 | 0.017 | 3.72a | 3.18 | 0.000 |
Northeast | 3.53a | 3.09 | 0.025 | 1.96a | 0.94 | 0.000 | 7.51a | 5.25 | 0.000 | 3.05 | 2.98 | 0.775 | 3.69b | 3.30 | 0.065 |
Midwest | 3.51a | 2.86 | 0.000 | 1.96a | 0.93 | 0.000 | 7.54a | 5.30 | 0.000 | 3.02b | 2.68 | 0.081 | 3.68a | 3.06 | 0.000 |
South | 3.44a | 2.73 | 0.000 | 1.73a | 0.92 | 0.000 | 6.37a | 4.66 | 0.000 | 3.16a | 2.62 | 0.006 | 3.63a | 2.92 | 0.000 |
West | 3.74b | 3.37 | 0.074 | 2.13a | 1.05 | 0.000 | 6.89a | 5.82 | 0.014 | 3.39 | 3.23 | 0.544 | 3.93 | 3.61 | 0.176 |
Alabama | 3.17a | 2.34 | 0.046 | 1.75a | 0.80 | 0.001 | 6.31a | 3.86 | 0.004 | 2.81 | 2.27 | 0.294 | 3.32b | 2.50 | 0.075 |
Alaska | 3.88 | 3.67 | 0.675 | 1.80a | 0.87 | 0.002 | 6.85 | 6.23 | 0.581 | 3.63 | 3.55 | 0.905 | 4.14 | 3.99 | 0.786 |
Arizona | 3.50 | 3.62 | 0.808 | 2.03a | 1.10 | 0.009 | 7.40 | 5.92 | 0.176 | 3.04 | 3.55 | 0.417 | 3.67 | 3.89 | 0.685 |
Arkansas | 3.25a | 2.42 | 0.046 | 1.75a | 0.96 | 0.008 | 6.67a | 4.30 | 0.010 | 2.88 | 2.28 | 0.251 | 3.41b | 2.57 | 0.071 |
California | 3.83 | 3.48 | 0.278 | 2.17a | 1.07 | 0.000 | 6.54 | 6.02 | 0.429 | 3.55 | 3.32 | 0.588 | 4.03 | 3.73 | 0.412 |
Colorado | 3.74 | 3.72 | 0.968 | 1.95a | 1.11 | 0.013 | 6.98 | 5.80 | 0.264 | 3.42 | 3.68 | 0.689 | 3.93 | 3.99 | 0.917 |
Connecticut | 3.48 | 3.16 | 0.513 | 2.06a | 0.92 | 0.000 | 7.27 | 6.02 | 0.269 | 3.06 | 2.96 | 0.874 | 3.64 | 3.39 | 0.651 |
Delaware | 3.47 | 2.74 | 0.119 | 1.72a | 0.92 | 0.004 | 6.67 | 5.26 | 0.160 | 3.15 | 2.54 | 0.298 | 3.66 | 2.92 | 0.154 |
District of Columbia | 4.61 | 3.97 | 0.281 | 1.23 | 0.84 | 0.166 | 7.75 | 6.15 | 0.214 | 4.22 | 3.72 | 0.505 | 4.87 | 4.14 | 0.259 |
Florida | 3.60a | 2.60 | 0.005 | 1.74a | 0.86 | 0.000 | 6.14a | 4.43 | 0.005 | 3.43a | 2.51 | 0.038 | 3.78a | 2.75 | 0.009 |
Georgia | 3.55a | 2.60 | 0.031 | 1.47a | 0.84 | 0.012 | 6.19a | 4.52 | 0.037 | 3.39 | 2.50 | 0.127 | 3.79a | 2.80 | 0.046 |
Hawaii | 3.22 | 2.69 | 0.269 | 2.03a | 0.84 | 0.002 | 7.02 | 5.32 | 0.130 | 2.74 | 2.47 | 0.641 | 3.33 | 2.85 | 0.366 |
Idaho | 3.25 | 3.02 | 0.599 | 2.11a | 0.92 | 0.000 | 7.04b | 5.37 | 0.095 | 2.75 | 2.92 | 0.763 | 3.39 | 3.28 | 0.818 |
Illinois | 3.66a | 2.82 | 0.013 | 1.67a | 0.91 | 0.001 | 7.94a | 5.53 | 0.002 | 3.14 | 2.61 | 0.197 | 3.88a | 3.02 | 0.022 |
Indiana | 3.31 | 3.16 | 0.729 | 2.21a | 0.98 | 0.000 | 7.61 | 6.00 | 0.136 | 2.73 | 2.94 | 0.717 | 3.44 | 3.40 | 0.937 |
Iowa | 3.41a | 2.59 | 0.049 | 2.41a | 0.94 | 0.000 | 7.01a | 4.81 | 0.020 | 2.90 | 2.39 | 0.338 | 3.52 | 2.76 | 0.103 |
Kansas | 3.40a | 2.50 | 0.038 | 1.97a | 0.94 | 0.001 | 6.98a | 4.82 | 0.029 | 2.92 | 2.28 | 0.244 | 3.56b | 2.67 | 0.068 |
Kentucky | 3.03 | 2.85 | 0.701 | 1.75a | 0.82 | 0.001 | 6.02a | 4.24 | 0.047 | 2.71 | 2.86 | 0.804 | 3.16 | 3.06 | 0.840 |
Louisiana | 3.55 | 3.57 | 0.970 | 1.49a | 0.85 | 0.018 | 6.32 | 5.98 | 0.730 | 3.30 | 3.49 | 0.775 | 3.79 | 3.86 | 0.897 |
Maine | 3.25a | 2.29 | 0.034 | 1.71a | 0.86 | 0.004 | 6.87a | 3.86 | 0.001 | 2.92 | 2.22 | 0.210 | 3.40a | 2.42 | 0.049 |
Maryland | 3.67 | 2.94 | 0.159 | 1.68a | 0.79 | 0.001 | 6.50 | 4.95 | 0.114 | 3.45 | 2.87 | 0.383 | 3.89 | 3.16 | 0.205 |
Massachusetts | 3.62 | 3.09 | 0.264 | 2.04a | 0.91 | 0.000 | 7.96a | 5.52 | 0.029 | 3.03 | 2.90 | 0.820 | 3.77 | 3.29 | 0.352 |
Michigan | 3.43a | 2.64 | 0.016 | 1.94a | 0.95 | 0.000 | 6.85a | 5.01 | 0.009 | 3.04 | 2.43 | 0.132 | 3.60a | 2.81 | 0.031 |
Minnesota | 4.17a | 2.75 | 0.006 | 1.98a | 0.85 | 0.000 | 7.72a | 5.01 | 0.009 | 3.84b | 2.62 | 0.062 | 4.41a | 2.95 | 0.012 |
Mississippi | 3.35a | 2.46 | 0.046 | 1.59a | 0.85 | 0.006 | 6.21a | 4.00 | 0.013 | 3.07 | 2.40 | 0.236 | 3.56b | 2.64 | 0.067 |
Missouri | 3.29 | 2.63 | 0.144 | 1.91a | 0.83 | 0.000 | 6.67b | 4.91 | 0.061 | 2.90 | 2.47 | 0.437 | 3.43 | 2.82 | 0.213 |
Montana | 3.99 | 3.38 | 0.271 | 2.60a | 0.94 | 0.000 | 10.69a | 6.06 | 0.000 | 3.03 | 3.21 | 0.791 | 4.13 | 3.61 | 0.394 |
Nebraska | 3.54 | 3.18 | 0.449 | 2.10a | 0.92 | 0.000 | 7.42 | 6.42 | 0.361 | 2.99 | 2.89 | 0.865 | 3.70 | 3.43 | 0.609 |
Nevada | 3.61 | 3.15 | 0.354 | 2.21a | 1.04 | 0.001 | 6.84 | 5.54 | 0.207 | 3.30 | 3.03 | 0.656 | 3.76 | 3.37 | 0.471 |
New Hampshire | 3.41 | 3.52 | 0.814 | 2.36a | 0.88 | 0.000 | 8.32a | 5.85 | 0.025 | 2.78 | 3.44 | 0.285 | 3.52 | 3.77 | 0.641 |
New Jersey | 3.09 | 2.50 | 0.148 | 1.76a | 0.91 | 0.003 | 6.03 | 4.83 | 0.155 | 2.80 | 2.33 | 0.372 | 3.23 | 2.66 | 0.209 |
New Mexico | 4.16 | 4.02 | 0.818 | 2.41a | 1.23 | 0.008 | 8.37 | 6.36 | 0.103 | 3.62 | 3.98 | 0.638 | 4.36 | 4.32 | 0.960 |
New York | 3.86 | 3.33 | 0.141 | 2.24a | 1.02 | 0.000 | 8.36a | 5.43 | 0.000 | 3.24 | 3.23 | 0.970 | 4.02 | 3.55 | 0.222 |
North Carolina | 3.52 | 2.81 | 0.104 | 1.49a | 0.81 | 0.004 | 6.50a | 4.69 | 0.036 | 3.29 | 2.74 | 0.333 | 3.74 | 3.01 | 0.141 |
North Dakota | 3.36 | 2.90 | 0.283 | 2.13a | 0.97 | 0.001 | 7.67 | 6.05 | 0.141 | 2.55 | 2.41 | 0.799 | 3.48 | 3.08 | 0.392 |
Ohio | 3.35 | 3.15 | 0.577 | 1.93a | 0.95 | 0.000 | 7.80a | 4.97 | 0.000 | 2.80 | 3.13 | 0.433 | 3.50 | 3.38 | 0.758 |
Oklahoma | 3.28 | 2.85 | 0.312 | 1.88a | 0.84 | 0.000 | 7.33a | 5.11 | 0.027 | 2.72 | 2.70 | 0.971 | 3.43 | 3.07 | 0.444 |
Oregon | 4.25 | 3.54 | 0.211 | 2.18a | 1.06 | 0.001 | 7.70b | 5.66 | 0.052 | 3.95 | 3.48 | 0.513 | 4.45 | 3.77 | 0.275 |
Pennsylvania | 3.26 | 3.10 | 0.642 | 1.62a | 0.88 | 0.002 | 6.84a | 4.78 | 0.004 | 2.87 | 3.07 | 0.663 | 3.43 | 3.31 | 0.748 |
Rhode Island | 4.27 | 3.53 | 0.214 | 1.75a | 0.96 | 0.011 | 7.60 | 6.22 | 0.248 | 3.94 | 3.31 | 0.400 | 4.52 | 3.77 | 0.247 |
South Carolina | 4.09a | 2.89 | 0.023 | 1.56a | 0.81 | 0.005 | 6.43 | 4.93 | 0.119 | 4.02b | 2.79 | 0.068 | 4.36a | 3.09 | 0.031 |
South Dakota | 3.68 | 3.30 | 0.440 | 2.17a | 0.95 | 0.000 | 9.13a | 5.98 | 0.007 | 2.89 | 3.12 | 0.711 | 3.85 | 3.55 | 0.587 |
Tennessee | 3.29b | 2.45 | 0.059 | 1.63a | 0.79 | 0.001 | 6.62a | 3.99 | 0.003 | 2.98 | 2.40 | 0.293 | 3.47b | 2.62 | 0.087 |
Texas | 3.17 | 2.70 | 0.115 | 1.92a | 1.16 | 0.006 | 5.83b | 4.73 | 0.081 | 2.85 | 2.54 | 0.421 | 3.32 | 2.88 | 0.193 |
Utah | 3.25a | 2.36 | 0.024 | 1.81a | 0.95 | 0.006 | 5.90 | 4.66 | 0.181 | 2.83 | 2.08 | 0.154 | 3.44b | 2.56 | 0.053 |
Vermont | 3.84 | 3.73 | 0.849 | 1.93a | 0.96 | 0.003 | 7.46 | 6.15 | 0.253 | 3.46 | 3.59 | 0.860 | 4.03 | 3.97 | 0.933 |
Virginia | 3.63b | 2.89 | 0.077 | 1.91a | 0.83 | 0.000 | 7.85a | 5.01 | 0.002 | 3.12 | 2.78 | 0.527 | 3.81 | 3.10 | 0.127 |
Washington | 3.48b | 2.64 | 0.051 | 2.07a | 0.93 | 0.000 | 7.44a | 5.21 | 0.027 | 3.02 | 2.42 | 0.270 | 3.63b | 2.81 | 0.086 |
West Virginia | 3.37 | 2.70 | 0.161 | 2.03a | 0.96 | 0.001 | 6.62 | 5.05 | 0.106 | 3.04 | 2.53 | 0.383 | 3.50 | 2.85 | 0.222 |
Wisconsin | 3.62 | 2.88 | 0.116 | 2.12a | 0.98 | 0.000 | 8.25a | 5.68 | 0.018 | 3.03 | 2.65 | 0.514 | 3.78 | 3.08 | 0.177 |
Wyoming | 3.48 | 3.35 | 0.785 | 2.50a | 1.06 | 0.000 | 7.93 | 6.71 | 0.303 | 2.81 | 3.05 | 0.685 | 3.58 | 3.58 | 0.999 |
State | 18+ (2008-2009) |
18+ (2014-2015) |
18+ (P Value) |
18-25 (2008-2009) |
18-25 (2014-2015) |
18-25 (P Value) |
26+ (2008-2009) |
26+ (2014-2015) |
26+ (P Value) |
---|---|---|---|---|---|---|---|---|---|
NOTE: State and census region estimates are based on a survey-weighted hierarchical Bayes estimation approach, with their p values being the Bayes significance levels for the null hypothesis of no change between the 2008-2009 and 2014-2015 population percentages. The "Total U.S." estimates, along with the p values, are based on design-based (direct) estimation methods. NOTE: Serious mental illness (SMI) is defined as having a diagnosable mental, behavioral, or emotional disorder, other than a developmental or substance use disorder, assessed by the Mental Health Surveillance Study (MHSS) Structured Clinical Interview for the Diagnostic and Statistical Manual of Mental Disorders—Fourth Edition—Research Version—Axis I Disorders (MHSS-SCID), which is based on the 4th edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV). SMI includes individuals with diagnoses resulting in serious functional impairment. For details, see Section B of the "2011-2012 NSDUH: Guide to State Tables and Summary of Small Area Estimation Methodology" at http://www.samhsa.gov/data/. a Difference between the 2008-2009 and 2014-2015 population percentages is statistically significant at the 0.05 level. b Difference between the 2008-2009 and 2014-2015 population percentages is statistically significant at the 0.10 level. Source: SAMHSA, Center for Behavioral Health Statistics and Quality, National Survey on Drug Use and Health, 2008, 2009, 2014, and 2015 (2008 and 2009 Data – Revised March 2012 and October 2013). |
|||||||||
Total U.S. | 3.70a | 4.05 | 0.006 | 3.55a | 4.92 | 0.000 | 3.72 | 3.91 | 0.214 |
Northeast | 3.64 | 3.94 | 0.199 | 3.65a | 5.15 | 0.000 | 3.64 | 3.74 | 0.712 |
Midwest | 4.00 | 4.36 | 0.101 | 3.79a | 5.33 | 0.000 | 4.04 | 4.19 | 0.530 |
South | 3.59a | 4.00 | 0.027 | 3.28a | 4.54 | 0.000 | 3.64 | 3.91 | 0.198 |
West | 3.63 | 3.96 | 0.151 | 3.66a | 4.98 | 0.000 | 3.62 | 3.78 | 0.549 |
Alabama | 3.57b | 4.64 | 0.070 | 3.44a | 4.97 | 0.029 | 3.59 | 4.59 | 0.143 |
Alaska | 3.49 | 4.02 | 0.323 | 3.11a | 5.75 | 0.001 | 3.56 | 3.69 | 0.830 |
Arizona | 3.84 | 4.33 | 0.408 | 3.72b | 5.06 | 0.073 | 3.86 | 4.21 | 0.605 |
Arkansas | 4.74 | 5.27 | 0.449 | 3.99 | 5.16 | 0.125 | 4.86 | 5.29 | 0.593 |
California | 3.20 | 3.53 | 0.344 | 3.62b | 4.47 | 0.076 | 3.12 | 3.36 | 0.548 |
Colorado | 4.65 | 4.27 | 0.554 | 3.67a | 5.27 | 0.035 | 4.81 | 4.10 | 0.323 |
Connecticut | 3.52 | 3.46 | 0.912 | 3.53a | 5.01 | 0.050 | 3.51 | 3.21 | 0.599 |
Delaware | 3.55 | 3.75 | 0.700 | 3.49a | 5.03 | 0.039 | 3.56 | 3.55 | 0.987 |
District of Columbia | 3.06 | 3.63 | 0.254 | 3.00a | 4.70 | 0.014 | 3.07 | 3.41 | 0.562 |
Florida | 3.64 | 3.61 | 0.953 | 3.39b | 4.33 | 0.052 | 3.67 | 3.51 | 0.713 |
Georgia | 3.39 | 3.99 | 0.278 | 2.78a | 4.12 | 0.031 | 3.49 | 3.96 | 0.450 |
Hawaii | 3.11 | 3.59 | 0.380 | 3.89 | 4.34 | 0.581 | 2.98 | 3.48 | 0.425 |
Idaho | 4.75 | 4.57 | 0.774 | 3.74a | 5.64 | 0.016 | 4.93 | 4.38 | 0.450 |
Illinois | 3.62 | 3.53 | 0.818 | 3.51b | 4.50 | 0.063 | 3.64 | 3.37 | 0.536 |
Indiana | 4.71 | 4.81 | 0.884 | 4.02a | 5.71 | 0.038 | 4.82 | 4.65 | 0.821 |
Iowa | 3.83 | 4.15 | 0.556 | 3.76b | 5.25 | 0.052 | 3.84 | 3.96 | 0.851 |
Kansas | 3.51 | 4.08 | 0.313 | 3.78 | 4.97 | 0.112 | 3.46 | 3.91 | 0.478 |
Kentucky | 4.18 | 5.08 | 0.184 | 3.42a | 4.93 | 0.035 | 4.30 | 5.11 | 0.295 |
Louisiana | 3.59b | 4.53 | 0.094 | 3.49 | 4.60 | 0.103 | 3.61 | 4.51 | 0.161 |
Maine | 4.00 | 5.06 | 0.111 | 4.33 | 5.39 | 0.197 | 3.95 | 5.01 | 0.154 |
Maryland | 3.28 | 3.05 | 0.625 | 3.46b | 4.66 | 0.092 | 3.25 | 2.79 | 0.387 |
Massachusetts | 3.73 | 3.86 | 0.818 | 3.21a | 5.09 | 0.010 | 3.82 | 3.64 | 0.771 |
Michigan | 3.98 | 4.33 | 0.413 | 4.12a | 5.39 | 0.027 | 3.96 | 4.15 | 0.694 |
Minnesota | 4.37 | 4.33 | 0.959 | 3.84a | 5.45 | 0.040 | 4.46 | 4.15 | 0.668 |
Mississippi | 3.43 | 4.14 | 0.225 | 2.99 | 3.92 | 0.156 | 3.51 | 4.17 | 0.320 |
Missouri | 4.09 | 4.68 | 0.346 | 3.58a | 5.56 | 0.008 | 4.18 | 4.53 | 0.617 |
Montana | 3.95b | 5.19 | 0.057 | 3.98a | 5.73 | 0.027 | 3.95 | 5.10 | 0.119 |
Nebraska | 3.57 | 4.43 | 0.124 | 3.59a | 5.69 | 0.008 | 3.57 | 4.21 | 0.316 |
Nevada | 4.37 | 4.41 | 0.946 | 3.81b | 5.38 | 0.052 | 4.45 | 4.26 | 0.802 |
New Hampshire | 3.75a | 5.42 | 0.012 | 3.98a | 7.55 | 0.000 | 3.72b | 5.08 | 0.063 |
New Jersey | 3.35 | 3.62 | 0.593 | 3.77a | 5.49 | 0.020 | 3.29 | 3.34 | 0.931 |
New Mexico | 3.45b | 4.47 | 0.085 | 3.61 | 4.46 | 0.230 | 3.42 | 4.47 | 0.121 |
New York | 3.84 | 3.90 | 0.879 | 3.80b | 4.75 | 0.064 | 3.85 | 3.76 | 0.838 |
North Carolina | 3.63b | 4.67 | 0.079 | 3.02a | 4.49 | 0.022 | 3.73 | 4.70 | 0.150 |
North Dakota | 3.25 | 3.90 | 0.177 | 3.36a | 5.18 | 0.014 | 3.23 | 3.61 | 0.491 |
Ohio | 4.10a | 5.22 | 0.018 | 3.69a | 5.94 | 0.000 | 4.17b | 5.10 | 0.082 |
Oklahoma | 3.97 | 4.33 | 0.549 | 4.07 | 5.02 | 0.240 | 3.95 | 4.20 | 0.707 |
Oregon | 4.23 | 4.73 | 0.452 | 3.82a | 6.81 | 0.000 | 4.30 | 4.40 | 0.882 |
Pennsylvania | 3.31b | 4.01 | 0.078 | 3.43a | 5.39 | 0.000 | 3.29 | 3.79 | 0.269 |
Rhode Island | 5.38 | 4.51 | 0.247 | 4.29 | 5.13 | 0.334 | 5.58 | 4.39 | 0.167 |
South Carolina | 3.57 | 4.08 | 0.367 | 3.26a | 4.68 | 0.044 | 3.62 | 3.98 | 0.570 |
South Dakota | 3.19b | 4.13 | 0.072 | 3.44b | 4.83 | 0.055 | 3.14 | 4.00 | 0.150 |
Tennessee | 3.80 | 4.36 | 0.358 | 3.25a | 4.82 | 0.025 | 3.89 | 4.29 | 0.558 |
Texas | 3.33 | 3.34 | 0.961 | 3.08a | 4.22 | 0.014 | 3.37 | 3.18 | 0.630 |
Utah | 4.64 | 4.55 | 0.878 | 3.78a | 6.12 | 0.005 | 4.86 | 4.19 | 0.335 |
Vermont | 3.78b | 4.88 | 0.097 | 3.97b | 5.32 | 0.094 | 3.75 | 4.80 | 0.165 |
Virginia | 3.34a | 4.45 | 0.041 | 3.55a | 5.32 | 0.014 | 3.30 | 4.30 | 0.104 |
Washington | 3.78 | 4.43 | 0.257 | 3.55a | 5.85 | 0.003 | 3.82 | 4.21 | 0.543 |
West Virginia | 4.87 | 5.41 | 0.487 | 3.66a | 5.30 | 0.035 | 5.04 | 5.43 | 0.660 |
Wisconsin | 4.12 | 3.99 | 0.822 | 4.16 | 5.28 | 0.166 | 4.11 | 3.77 | 0.608 |
Wyoming | 4.20 | 4.41 | 0.735 | 3.49a | 5.76 | 0.003 | 4.32 | 4.18 | 0.831 |
State | 18+ (2008-2009) |
18+ (2014-2015) |
18+ (P Value) |
18-25 (2008-2009) |
18-25 (2014-2015) |
18-25 (P Value) |
26+ (2008-2009) |
26+ (2014-2015) |
26+ (P Value) |
---|---|---|---|---|---|---|---|---|---|
NOTE: State and census region estimates are based on a survey-weighted hierarchical Bayes estimation approach, with their p values being the Bayes significance levels for the null hypothesis of no change between the 2008-2009 and 2014-2015 population percentages. The "Total U.S." estimates, along with the p values, are based on design-based (direct) estimation methods. NOTE: Any mental illness (AMI) is defined as having a diagnosable mental, behavioral, or emotional disorder, other than a developmental or substance use disorder, assessed by the Mental Health Surveillance Study (MHSS) Structured Clinical Interview for the Diagnostic and Statistical Manual of Mental Disorders—Fourth Edition—Research Version—Axis I Disorders (MHSS-SCID), which is based on the 4th edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV). Three categories of mental illness severity are defined based on the level of functional impairment: mild mental illness, moderate mental illness, and serious mental illness. Any mental illness includes individuals in any of the three categories. For details, see Section B of the "2011-2012 NSDUH: Guide to State Tables and Summary of Small Area Estimation Methodology" at http://www.samhsa.gov/data/. a Difference between the 2008-2009 and 2014-2015 population percentages is statistically significant at the 0.05 level. b Difference between the 2008-2009 and 2014-2015 population percentages is statistically significant at the 0.10 level. Source: SAMHSA, Center for Behavioral Health Statistics and Quality, National Survey on Drug Use and Health, 2008, 2009, 2014, and 2015 (2008 and 2009 Data – Revised March 2012 and October 2013). |
|||||||||
Total U.S. | 17.92 | 18.01 | 0.764 | 18.25a | 20.89 | 0.000 | 17.86 | 17.52 | 0.272 |
Northeast | 18.18 | 17.76 | 0.430 | 18.61a | 22.00 | 0.000 | 18.10b | 17.07 | 0.084 |
Midwest | 18.36 | 18.34 | 0.965 | 19.22a | 21.43 | 0.000 | 18.21 | 17.81 | 0.430 |
South | 17.33 | 17.82 | 0.240 | 17.06a | 19.31 | 0.000 | 17.38 | 17.57 | 0.682 |
West | 18.23 | 18.18 | 0.929 | 18.88a | 22.03 | 0.000 | 18.12 | 17.51 | 0.337 |
Alabama | 17.44 | 18.85 | 0.300 | 16.53 | 18.78 | 0.195 | 17.59 | 18.86 | 0.412 |
Alaska | 16.72 | 18.11 | 0.291 | 15.79a | 24.93 | 0.000 | 16.90 | 16.80 | 0.947 |
Arizona | 17.15 | 18.32 | 0.407 | 18.31 | 19.58 | 0.503 | 16.95 | 18.10 | 0.474 |
Arkansas | 19.60 | 19.77 | 0.907 | 19.89 | 21.50 | 0.405 | 19.55 | 19.48 | 0.967 |
California | 17.44 | 17.04 | 0.635 | 18.49b | 20.70 | 0.054 | 17.23 | 16.38 | 0.366 |
Colorado | 18.95 | 19.55 | 0.682 | 17.74a | 24.26 | 0.001 | 19.15 | 18.75 | 0.809 |
Connecticut | 17.87 | 17.42 | 0.751 | 19.35 | 21.34 | 0.317 | 17.64 | 16.78 | 0.595 |
Delaware | 17.75 | 18.51 | 0.596 | 18.41 | 20.97 | 0.178 | 17.64 | 18.11 | 0.770 |
District of Columbia | 17.99 | 17.95 | 0.980 | 17.44 | 19.31 | 0.318 | 18.12 | 17.67 | 0.772 |
Florida | 16.99 | 16.77 | 0.808 | 16.69a | 19.01 | 0.042 | 17.03 | 16.44 | 0.565 |
Georgia | 16.50 | 17.42 | 0.462 | 16.16a | 19.90 | 0.025 | 16.56 | 16.99 | 0.762 |
Hawaii | 17.52 | 15.91 | 0.230 | 19.54 | 20.03 | 0.812 | 17.20 | 15.28 | 0.199 |
Idaho | 19.51 | 20.41 | 0.521 | 19.37a | 23.90 | 0.020 | 19.54 | 19.82 | 0.861 |
Illinois | 16.68 | 16.16 | 0.559 | 17.19 | 19.03 | 0.136 | 16.59 | 15.68 | 0.372 |
Indiana | 20.37 | 20.56 | 0.897 | 20.62b | 24.31 | 0.068 | 20.33 | 19.90 | 0.801 |
Iowa | 17.23 | 17.10 | 0.923 | 18.24 | 19.27 | 0.581 | 17.05 | 16.72 | 0.816 |
Kansas | 17.24 | 17.52 | 0.837 | 17.89 | 19.19 | 0.501 | 17.13 | 17.22 | 0.952 |
Kentucky | 19.23 | 21.30 | 0.175 | 17.78 | 19.78 | 0.281 | 19.46 | 21.55 | 0.223 |
Louisiana | 17.46 | 18.42 | 0.481 | 16.81 | 17.30 | 0.777 | 17.59 | 18.62 | 0.510 |
Maine | 19.25 | 19.16 | 0.952 | 19.59b | 23.21 | 0.081 | 19.20 | 18.61 | 0.718 |
Maryland | 16.86 | 16.62 | 0.856 | 17.72b | 21.14 | 0.078 | 16.72 | 15.89 | 0.585 |
Massachusetts | 18.01 | 18.99 | 0.483 | 18.31b | 21.81 | 0.075 | 17.95 | 18.50 | 0.729 |
Michigan | 18.63 | 18.07 | 0.546 | 19.81b | 22.10 | 0.070 | 18.43 | 17.38 | 0.318 |
Minnesota | 18.94 | 18.78 | 0.910 | 19.72 | 22.58 | 0.143 | 18.81 | 18.17 | 0.680 |
Mississippi | 16.95 | 17.95 | 0.475 | 17.28 | 16.41 | 0.624 | 16.89 | 18.23 | 0.400 |
Missouri | 19.11 | 17.99 | 0.431 | 21.43 | 20.97 | 0.821 | 18.72 | 17.49 | 0.436 |
Montana | 19.18 | 19.97 | 0.592 | 19.20a | 24.13 | 0.013 | 19.17 | 19.28 | 0.948 |
Nebraska | 17.56 | 18.19 | 0.637 | 17.25 | 20.00 | 0.149 | 17.63 | 17.87 | 0.872 |
Nevada | 20.59b | 17.91 | 0.074 | 20.46 | 20.74 | 0.893 | 20.60b | 17.48 | 0.061 |
New Hampshire | 18.35a | 21.67 | 0.023 | 19.88a | 28.01 | 0.000 | 18.11 | 20.68 | 0.115 |
New Jersey | 17.65 | 16.19 | 0.273 | 18.52 | 20.62 | 0.224 | 17.51 | 15.52 | 0.181 |
New Mexico | 17.85 | 19.93 | 0.162 | 18.04b | 21.26 | 0.096 | 17.82 | 19.70 | 0.267 |
New York | 18.35 | 17.22 | 0.205 | 18.27a | 22.30 | 0.002 | 18.37a | 16.36 | 0.047 |
North Carolina | 17.74 | 19.48 | 0.188 | 16.43a | 20.92 | 0.008 | 17.95 | 19.24 | 0.389 |
North Dakota | 15.46 | 16.78 | 0.283 | 15.32a | 21.85 | 0.000 | 15.50 | 15.65 | 0.918 |
Ohio | 18.41b | 20.20 | 0.070 | 18.75a | 22.49 | 0.004 | 18.36 | 19.82 | 0.186 |
Oklahoma | 20.33 | 19.18 | 0.445 | 20.56 | 20.58 | 0.995 | 20.28 | 18.93 | 0.427 |
Oregon | 19.55 | 21.47 | 0.205 | 20.51a | 27.21 | 0.001 | 19.40 | 20.59 | 0.484 |
Pennsylvania | 17.83 | 18.21 | 0.695 | 18.55a | 21.89 | 0.012 | 17.71 | 17.62 | 0.935 |
Rhode Island | 23.53b | 20.50 | 0.073 | 22.77 | 22.01 | 0.739 | 23.67b | 20.22 | 0.073 |
South Carolina | 16.95 | 17.52 | 0.682 | 16.99 | 18.89 | 0.309 | 16.94 | 17.29 | 0.821 |
South Dakota | 16.40 | 17.57 | 0.376 | 16.94a | 20.90 | 0.027 | 16.31 | 16.99 | 0.651 |
Tennessee | 19.12 | 19.85 | 0.623 | 17.43 | 20.40 | 0.108 | 19.38 | 19.76 | 0.819 |
Texas | 16.47 | 15.98 | 0.561 | 16.11 | 17.92 | 0.112 | 16.54 | 15.63 | 0.340 |
Utah | 21.78 | 20.48 | 0.360 | 21.53 | 24.06 | 0.239 | 21.85 | 19.66 | 0.186 |
Vermont | 18.66 | 20.27 | 0.273 | 19.42b | 23.37 | 0.055 | 18.53 | 19.73 | 0.469 |
Virginia | 16.33a | 19.18 | 0.027 | 18.33 | 20.56 | 0.214 | 15.99a | 18.94 | 0.041 |
Washington | 19.85 | 19.68 | 0.908 | 20.00a | 26.63 | 0.002 | 19.82 | 18.56 | 0.445 |
West Virginia | 20.00 | 20.89 | 0.573 | 21.21 | 20.88 | 0.871 | 19.83 | 20.89 | 0.545 |
Wisconsin | 19.96 | 18.75 | 0.410 | 22.43 | 22.42 | 0.994 | 19.55 | 18.15 | 0.397 |
Wyoming | 20.24 | 19.51 | 0.618 | 20.38 | 23.37 | 0.136 | 20.22 | 18.85 | 0.410 |
State | 18+ (2008-2009) |
18+ (2014-2015) |
18+ (P Value) |
18-25 (2008-2009) |
18-25 (2014-2015) |
18-25 (P Value) |
26+ (2008-2009) |
26+ (2014-2015) |
26+ (P Value) |
---|---|---|---|---|---|---|---|---|---|
NOTE: State and census region estimates are based on a survey-weighted hierarchical Bayes estimation approach, with their p values being the Bayes significance levels for the null hypothesis of no change between the 2008-2009 and 2014-2015 population percentages. The "Total U.S." estimates, along with the p values, are based on design-based (direct) estimation methods. NOTE: Respondents were asked, "At any time in the past 12 months, did you seriously think about trying to kill yourself?" If they answered "Yes," they were categorized as having serious thoughts of suicide in the past year. a Difference between the 2008-2009 and 2014-2015 population percentages is statistically significant at the 0.05 level. b Difference between the 2008-2009 and 2014-2015 population percentages is statistically significant at the 0.10 level. Source: SAMHSA, Center for Behavioral Health Statistics and Quality, National Survey on Drug Use and Health, 2008, 2009, 2014, and 2015 (2008 and 2009 Data – Revised March 2012). |
|||||||||
Total U.S. | 3.73a | 3.99 | 0.032 | 6.42a | 7.88 | 0.000 | 3.26 | 3.34 | 0.585 |
Northeast | 3.73 | 3.93 | 0.349 | 6.64a | 8.15 | 0.000 | 3.24 | 3.24 | 0.997 |
Midwest | 4.10 | 4.14 | 0.843 | 6.79a | 8.08 | 0.000 | 3.64 | 3.48 | 0.436 |
South | 3.41a | 3.86 | 0.008 | 5.91a | 7.40 | 0.000 | 2.99 | 3.27 | 0.138 |
West | 3.87 | 4.12 | 0.257 | 6.66a | 8.25 | 0.000 | 3.36 | 3.41 | 0.865 |
Alabama | 3.73 | 4.02 | 0.606 | 6.42 | 7.76 | 0.179 | 3.28 | 3.40 | 0.850 |
Alaska | 3.76 | 4.68 | 0.104 | 6.00a | 9.97 | 0.001 | 3.34 | 3.66 | 0.595 |
Arizona | 3.98 | 4.34 | 0.544 | 6.60 | 8.06 | 0.171 | 3.54 | 3.70 | 0.805 |
Arkansas | 4.11 | 4.41 | 0.600 | 6.67 | 7.43 | 0.448 | 3.69 | 3.90 | 0.742 |
California | 3.39 | 3.80 | 0.198 | 6.53b | 7.68 | 0.081 | 2.79 | 3.11 | 0.375 |
Colorado | 4.30 | 4.47 | 0.777 | 6.14a | 8.56 | 0.019 | 4.00 | 3.78 | 0.742 |
Connecticut | 3.95 | 3.49 | 0.390 | 6.61 | 7.59 | 0.338 | 3.53 | 2.82 | 0.227 |
Delaware | 3.02a | 4.03 | 0.048 | 6.09a | 8.33 | 0.028 | 2.51 | 3.34 | 0.135 |
District of Columbia | 4.47 | 4.18 | 0.632 | 5.73 | 7.26 | 0.104 | 4.18 | 3.54 | 0.344 |
Florida | 3.54 | 3.59 | 0.893 | 6.10b | 7.33 | 0.069 | 3.16 | 3.04 | 0.774 |
Georgia | 2.80a | 4.03 | 0.007 | 5.26b | 6.92 | 0.060 | 2.38a | 3.53 | 0.024 |
Hawaii | 3.81 | 3.88 | 0.904 | 7.53 | 7.96 | 0.719 | 3.21 | 3.25 | 0.955 |
Idaho | 4.76 | 4.39 | 0.526 | 7.07 | 8.05 | 0.367 | 4.35 | 3.76 | 0.373 |
Illinois | 4.28 | 3.89 | 0.349 | 6.31b | 7.58 | 0.081 | 3.91 | 3.27 | 0.167 |
Indiana | 4.21 | 4.17 | 0.936 | 6.56 | 8.03 | 0.145 | 3.82 | 3.49 | 0.591 |
Iowa | 4.01 | 3.93 | 0.874 | 6.44 | 8.13 | 0.104 | 3.59 | 3.18 | 0.480 |
Kansas | 3.60 | 4.14 | 0.291 | 6.42 | 7.91 | 0.149 | 3.07 | 3.45 | 0.506 |
Kentucky | 3.96 | 4.66 | 0.247 | 6.28 | 7.89 | 0.102 | 3.60 | 4.12 | 0.443 |
Louisiana | 3.11a | 4.19 | 0.035 | 5.84 | 7.37 | 0.114 | 2.58b | 3.63 | 0.065 |
Maine | 4.56 | 4.10 | 0.455 | 7.07 | 8.02 | 0.378 | 4.21 | 3.57 | 0.334 |
Maryland | 3.41 | 3.65 | 0.624 | 6.51 | 7.74 | 0.236 | 2.89 | 3.00 | 0.831 |
Massachusetts | 3.93 | 3.88 | 0.925 | 5.99b | 7.62 | 0.090 | 3.57 | 3.23 | 0.581 |
Michigan | 4.26 | 4.14 | 0.753 | 7.67 | 8.35 | 0.386 | 3.69 | 3.41 | 0.545 |
Minnesota | 3.67 | 4.07 | 0.448 | 6.59 | 8.21 | 0.120 | 3.18 | 3.41 | 0.687 |
Mississippi | 3.29b | 4.13 | 0.095 | 6.35 | 6.97 | 0.513 | 2.72 | 3.62 | 0.118 |
Missouri | 3.87 | 3.92 | 0.934 | 6.34 | 7.67 | 0.174 | 3.47 | 3.29 | 0.772 |
Montana | 4.35 | 4.95 | 0.353 | 6.85a | 8.96 | 0.043 | 3.93 | 4.29 | 0.624 |
Nebraska | 3.91 | 4.18 | 0.614 | 6.04a | 8.27 | 0.025 | 3.51 | 3.45 | 0.919 |
Nevada | 4.41 | 4.45 | 0.956 | 6.71b | 8.56 | 0.094 | 4.07 | 3.82 | 0.727 |
New Hampshire | 3.40a | 4.94 | 0.008 | 6.82a | 10.56 | 0.002 | 2.88b | 4.06 | 0.064 |
New Jersey | 3.28 | 3.78 | 0.291 | 6.97 | 8.10 | 0.257 | 2.71 | 3.13 | 0.420 |
New Mexico | 4.15 | 4.08 | 0.904 | 6.85 | 7.93 | 0.318 | 3.65 | 3.42 | 0.726 |
New York | 3.82 | 3.85 | 0.929 | 6.62b | 8.00 | 0.066 | 3.32 | 3.15 | 0.694 |
North Carolina | 3.55 | 4.20 | 0.216 | 5.80b | 7.28 | 0.097 | 3.18 | 3.69 | 0.385 |
North Dakota | 3.56 | 3.95 | 0.425 | 5.39a | 8.01 | 0.007 | 3.14 | 3.04 | 0.845 |
Ohio | 4.25 | 4.64 | 0.382 | 6.90a | 8.52 | 0.041 | 3.82 | 4.01 | 0.698 |
Oklahoma | 3.53 | 3.97 | 0.406 | 6.31 | 7.74 | 0.162 | 3.02 | 3.31 | 0.629 |
Oregon | 4.43 | 4.37 | 0.931 | 6.64a | 10.09 | 0.002 | 4.08 | 3.49 | 0.383 |
Pennsylvania | 3.52 | 4.10 | 0.118 | 6.73a | 8.64 | 0.014 | 2.99 | 3.38 | 0.347 |
Rhode Island | 5.11 | 4.42 | 0.320 | 6.79 | 8.62 | 0.101 | 4.79 | 3.65 | 0.136 |
South Carolina | 3.51 | 3.73 | 0.676 | 6.21 | 6.87 | 0.484 | 3.07 | 3.21 | 0.805 |
South Dakota | 4.23 | 3.66 | 0.281 | 7.18 | 7.33 | 0.883 | 3.70 | 3.02 | 0.248 |
Tennessee | 3.26a | 4.26 | 0.049 | 5.64a | 7.59 | 0.037 | 2.90 | 3.72 | 0.147 |
Texas | 3.27 | 3.46 | 0.557 | 5.42a | 7.28 | 0.004 | 2.86 | 2.76 | 0.780 |
Utah | 5.39 | 5.25 | 0.841 | 7.49a | 9.95 | 0.047 | 4.85 | 4.18 | 0.370 |
Vermont | 4.49 | 4.59 | 0.872 | 7.04 | 7.94 | 0.400 | 4.07 | 4.01 | 0.929 |
Virginia | 3.31 | 3.94 | 0.169 | 6.25b | 8.06 | 0.061 | 2.80 | 3.25 | 0.374 |
Washington | 4.56 | 4.54 | 0.983 | 7.18a | 9.49 | 0.042 | 4.14 | 3.75 | 0.579 |
West Virginia | 4.29 | 4.23 | 0.922 | 7.28 | 7.69 | 0.712 | 3.86 | 3.71 | 0.828 |
Wisconsin | 4.05 | 4.18 | 0.802 | 7.90 | 8.30 | 0.716 | 3.40 | 3.50 | 0.862 |
Wyoming | 4.52 | 4.14 | 0.514 | 6.32a | 8.37 | 0.047 | 4.20 | 3.42 | 0.225 |
State | 18+ (2008-2009) |
18+ (2014-2015) |
18+ (P Value) |
12-17 (2008-2009) |
12-17 (2014-2015) |
12-17 (P Value) |
18-25 (2008-2009) |
18-25 (2014-2015) |
18-25 (P Value) |
26+ (2008-2009) |
26+ (2014-2015) |
26+ (P Value) |
---|---|---|---|---|---|---|---|---|---|---|---|---|
NOTE: State and census region estimates are based on a survey-weighted hierarchical Bayes estimation approach, with their p values being the Bayes significance levels for the null hypothesis of no change between the 2008-2009 and 2014-2015 population percentages. The "Total U.S." estimates, along with the p values, are based on design-based (direct) estimation methods. NOTE: Major depressive episode (MDE) is defined as in the 4th edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV), which specifies a period of at least 2 weeks when an individual experienced a depressed mood or loss of interest or pleasure in daily activities and had a majority of specified depression symptoms. For details, see Section B of the "2011-2012 NSDUH: Guide to State Tables and Summary of Small Area Estimation Methodology" at http://www.samhsa.gov/data/. NOTE: There are minor wording differences in the questions in the adult and adolescent MDE modules. Therefore, data from youths aged 12 to 17 were not combined with data from adults aged 18 or older to produce an estimate for those aged 12 or older. a Difference between the 2008-2009 and 2014-2015 population percentages is statistically significant at the 0.05 level. b Difference between the 2008-2009 and 2014-2015 population percentages is statistically significant at the 0.10 level. Source: SAMHSA, Center for Behavioral Health Statistics and Quality, National Survey on Drug Use and Health, 2008, 2009, 2014, and 2015 (2008 and 2009 Data – Revised March 2012). |
||||||||||||
Total U.S. | 6.53 | 6.64 | 0.519 | 8.22a | 11.93 | 0.000 | 8.21a | 9.79 | 0.000 | 6.24 | 6.11 | 0.474 |
Northeast | 6.42 | 6.82 | 0.192 | 7.92a | 11.68 | 0.000 | 8.06a | 10.56 | 0.000 | 6.15 | 6.21 | 0.858 |
Midwest | 6.72 | 6.87 | 0.530 | 8.35a | 12.12 | 0.000 | 8.50a | 10.23 | 0.000 | 6.41 | 6.31 | 0.723 |
South | 6.44 | 6.52 | 0.730 | 8.07a | 11.51 | 0.000 | 7.79a | 9.09 | 0.000 | 6.22 | 6.09 | 0.648 |
West | 6.57 | 6.47 | 0.740 | 8.53a | 12.59 | 0.000 | 8.67a | 9.94 | 0.014 | 6.19 | 5.87 | 0.335 |
Alabama | 6.35 | 6.81 | 0.556 | 7.99a | 10.97 | 0.015 | 7.35 | 8.61 | 0.277 | 6.19 | 6.51 | 0.712 |
Alaska | 5.86 | 6.73 | 0.259 | 7.70a | 12.40 | 0.000 | 7.31a | 11.68 | 0.002 | 5.59 | 5.77 | 0.827 |
Arizona | 6.94 | 6.77 | 0.842 | 8.99a | 13.20 | 0.003 | 8.88 | 8.46 | 0.747 | 6.61 | 6.48 | 0.893 |
Arkansas | 7.86 | 7.78 | 0.935 | 9.03a | 12.72 | 0.005 | 8.98 | 10.27 | 0.335 | 7.67 | 7.36 | 0.766 |
California | 6.05 | 5.90 | 0.730 | 8.14a | 12.28 | 0.000 | 8.50 | 9.57 | 0.168 | 5.58 | 5.24 | 0.493 |
Colorado | 7.56 | 7.25 | 0.724 | 9.16a | 13.73 | 0.001 | 8.40 | 10.47 | 0.120 | 7.41 | 6.71 | 0.467 |
Connecticut | 5.95 | 6.77 | 0.282 | 8.03a | 11.49 | 0.007 | 8.11b | 10.28 | 0.098 | 5.61 | 6.21 | 0.473 |
Delaware | 6.43 | 6.39 | 0.957 | 7.86a | 11.47 | 0.003 | 8.55 | 9.88 | 0.291 | 6.08 | 5.83 | 0.775 |
District of Columbia | 5.93 | 6.60 | 0.348 | 6.93a | 9.96 | 0.017 | 7.39a | 9.92 | 0.049 | 5.60 | 5.91 | 0.702 |
Florida | 6.40 | 5.95 | 0.395 | 8.53a | 11.88 | 0.000 | 7.93 | 8.84 | 0.244 | 6.17 | 5.53 | 0.277 |
Georgia | 6.26 | 6.43 | 0.815 | 7.88a | 10.08 | 0.049 | 7.65 | 9.10 | 0.187 | 6.02 | 5.96 | 0.944 |
Hawaii | 6.15 | 5.65 | 0.530 | 8.08 | 9.87 | 0.197 | 8.68 | 8.31 | 0.788 | 5.74 | 5.24 | 0.567 |
Idaho | 7.47 | 7.14 | 0.682 | 8.90a | 13.03 | 0.004 | 9.19 | 10.94 | 0.188 | 7.16 | 6.49 | 0.451 |
Illinois | 6.17 | 5.98 | 0.709 | 7.48a | 11.20 | 0.000 | 7.93 | 9.06 | 0.193 | 5.85 | 5.46 | 0.506 |
Indiana | 8.14 | 7.89 | 0.784 | 9.25a | 14.64 | 0.000 | 8.51a | 12.01 | 0.012 | 8.08 | 7.16 | 0.374 |
Iowa | 5.87 | 6.41 | 0.453 | 8.07a | 11.87 | 0.003 | 7.75 | 8.95 | 0.326 | 5.54 | 5.96 | 0.604 |
Kansas | 6.61 | 7.01 | 0.625 | 8.58a | 11.18 | 0.043 | 8.38 | 9.83 | 0.255 | 6.29 | 6.49 | 0.820 |
Kentucky | 7.14 | 7.60 | 0.597 | 8.42a | 11.05 | 0.037 | 7.98b | 10.31 | 0.061 | 7.00 | 7.15 | 0.883 |
Louisiana | 5.75 | 6.83 | 0.158 | 7.67a | 11.00 | 0.008 | 6.97 | 8.42 | 0.201 | 5.51 | 6.55 | 0.236 |
Maine | 6.81 | 7.88 | 0.209 | 8.08a | 12.51 | 0.001 | 8.78a | 12.13 | 0.018 | 6.53 | 7.30 | 0.414 |
Maryland | 6.17 | 6.02 | 0.844 | 7.31a | 11.03 | 0.003 | 8.18 | 10.21 | 0.126 | 5.83 | 5.36 | 0.569 |
Massachusetts | 6.77 | 7.29 | 0.514 | 8.03a | 12.37 | 0.001 | 8.51a | 11.29 | 0.036 | 6.47 | 6.59 | 0.888 |
Michigan | 6.65 | 6.57 | 0.875 | 8.21a | 11.80 | 0.000 | 9.15 | 10.37 | 0.179 | 6.23 | 5.92 | 0.599 |
Minnesota | 7.55 | 7.36 | 0.826 | 8.60a | 12.55 | 0.002 | 8.87 | 9.83 | 0.463 | 7.33 | 6.97 | 0.712 |
Mississippi | 5.80 | 5.88 | 0.916 | 7.26a | 11.08 | 0.002 | 6.60 | 8.02 | 0.198 | 5.66 | 5.49 | 0.834 |
Missouri | 7.03 | 6.62 | 0.611 | 8.91a | 11.49 | 0.041 | 9.15 | 9.67 | 0.693 | 6.68 | 6.11 | 0.527 |
Montana | 6.76 | 6.92 | 0.839 | 9.07b | 11.42 | 0.078 | 8.85 | 9.29 | 0.718 | 6.41 | 6.53 | 0.895 |
Nebraska | 6.31 | 7.21 | 0.243 | 8.20a | 12.25 | 0.002 | 7.59a | 10.84 | 0.011 | 6.07 | 6.56 | 0.574 |
Nevada | 6.88 | 6.93 | 0.958 | 7.38a | 13.94 | 0.000 | 8.89 | 9.65 | 0.558 | 6.58 | 6.51 | 0.937 |
New Hampshire | 7.61 | 8.71 | 0.244 | 8.80a | 13.43 | 0.001 | 8.88a | 13.21 | 0.004 | 7.41 | 8.00 | 0.575 |
New Jersey | 5.98 | 6.47 | 0.496 | 7.35a | 10.32 | 0.008 | 8.12b | 10.18 | 0.075 | 5.65 | 5.91 | 0.742 |
New Mexico | 6.47 | 6.59 | 0.880 | 8.95b | 11.50 | 0.055 | 8.56 | 8.59 | 0.986 | 6.08 | 6.25 | 0.854 |
New York | 6.64 | 6.52 | 0.812 | 8.22a | 11.92 | 0.000 | 7.84a | 10.12 | 0.008 | 6.42 | 5.91 | 0.365 |
North Carolina | 6.85 | 7.47 | 0.429 | 8.43a | 12.35 | 0.001 | 8.07 | 9.62 | 0.177 | 6.65 | 7.12 | 0.596 |
North Dakota | 6.26 | 6.37 | 0.877 | 9.03 | 10.47 | 0.250 | 7.21b | 9.47 | 0.058 | 6.05 | 5.68 | 0.654 |
Ohio | 6.18a | 7.74 | 0.005 | 8.31a | 11.85 | 0.000 | 8.16a | 11.18 | 0.001 | 5.85a | 7.19 | 0.032 |
Oklahoma | 7.40 | 6.83 | 0.494 | 8.04a | 12.57 | 0.001 | 9.47 | 9.45 | 0.992 | 7.03 | 6.36 | 0.482 |
Oregon | 7.44 | 7.51 | 0.929 | 10.18a | 14.33 | 0.006 | 9.83 | 11.61 | 0.208 | 7.07 | 6.88 | 0.848 |
Pennsylvania | 5.92b | 6.89 | 0.083 | 7.54a | 11.64 | 0.000 | 7.64a | 10.83 | 0.000 | 5.64 | 6.26 | 0.312 |
Rhode Island | 9.34a | 7.08 | 0.025 | 9.35a | 13.03 | 0.014 | 10.87 | 9.81 | 0.493 | 9.05a | 6.57 | 0.029 |
South Carolina | 7.02 | 6.48 | 0.491 | 8.90b | 10.96 | 0.091 | 8.43 | 8.67 | 0.843 | 6.79 | 6.12 | 0.449 |
South Dakota | 5.71 | 6.11 | 0.575 | 8.47 | 9.90 | 0.275 | 6.90a | 9.25 | 0.047 | 5.50 | 5.56 | 0.940 |
Tennessee | 6.83 | 6.97 | 0.866 | 8.53b | 10.92 | 0.062 | 7.19a | 9.58 | 0.043 | 6.78 | 6.54 | 0.793 |
Texas | 5.97 | 5.68 | 0.533 | 7.49a | 11.53 | 0.000 | 7.25 | 8.15 | 0.229 | 5.73 | 5.23 | 0.339 |
Utah | 7.51 | 7.02 | 0.525 | 8.43a | 11.97 | 0.005 | 8.37 | 10.21 | 0.143 | 7.29 | 6.29 | 0.257 |
Vermont | 6.52b | 7.93 | 0.094 | 8.10a | 12.06 | 0.002 | 9.43 | 10.45 | 0.455 | 6.04 | 7.49 | 0.128 |
Virginia | 6.30a | 7.93 | 0.038 | 8.78a | 12.47 | 0.004 | 8.57b | 10.58 | 0.100 | 5.92b | 7.49 | 0.076 |
Washington | 7.19 | 7.50 | 0.714 | 9.39a | 12.54 | 0.023 | 9.07a | 12.52 | 0.020 | 6.88 | 6.70 | 0.844 |
West Virginia | 7.77 | 8.29 | 0.590 | 8.39a | 13.26 | 0.000 | 8.81 | 10.61 | 0.199 | 7.62 | 7.95 | 0.764 |
Wisconsin | 7.28 | 6.56 | 0.365 | 8.83a | 13.64 | 0.001 | 9.55 | 10.61 | 0.430 | 6.89 | 5.89 | 0.258 |
Wyoming | 7.37 | 7.51 | 0.867 | 8.50a | 13.31 | 0.000 | 9.50 | 10.80 | 0.351 | 6.99 | 6.95 | 0.966 |
To determine whether the differences between the 2008-20091 and 2014-2015 National Survey on Drug Use and Health (NSDUH) state prevalence rates are statistically significant, let and denote the 2008-2009 and 2014-2015 prevalence rates, respectively, for state-s and age group-a. The difference between and is defined in terms of the log odds ratio () as opposed to the simple difference because the posterior distribution of is closer to Gaussian than the posterior distribution of the simple difference (). The is defined as follows:
. D
In this equation, the ln denotes the natural logarithm. The p value given in each of the tables in this document (i.e., Tables 1 to 14) is computed to test the null hypothesis of no change (i.e., or equivalently, ). An estimate of is given by
, D
where are the previously published 2008-2009 state estimates2 and are the 2014-2015 state estimates presented in Tables 1 to 14 and elsewhere at http://www.samhsa.gov/data/. To compute the variance of , that is, , let and , then
, D
where denotes the covariance between and . This covariance is defined in terms of the associated correlation as follows:
. D
Note that and used here to calculate are the same variances used in calculating the previously published 2008-2009 Bayesian confidence intervals and the 2014-2015 Bayesian confidence intervals given here, respectively. The correlation between and is estimated using generalized correlations,3 which are described in detail in the next section.
To calculate the p value for testing the null hypothesis of no difference () between the 2008-2009 and 2014-2015 state estimates, it is assumed that the posterior distribution of is normal with and . With the null value of (), the Bayes p value or significance level for the null hypothesis of no difference is , where is a standard normal random variate, , and denotes the absolute value of . This Bayesian significance level (or p value) for the null value of , say , is defined following Rubin4 as the posterior probability for the collection of the values that are less likely or have smaller posterior density than the null (no change) value . That is, . With the posterior distribution of approximately normal, is given by the above expression.
The correlation between and for each substance use outcome measure by state by age group combination was estimated by taking the average of seven correlations for each outcome measure by state by age group, as follows:
The average of these seven correlations is henceforth referred to as a "generalized correlation."
The generalized correlation between and for any mental illness (AMI), serious mental illness (SMI), and suicidal thoughts by state and age group was estimated by taking the average of six correlations for each outcome by state by age group, as follows:
The generalized correlation between and for the fourth mental health measure—major depressive episode (MDE)—was estimated by taking the average of eight correlations for each outcome by age group by state, as follows:
Each of these individual sets of correlations was produced by simultaneously fitting 4 years of NSDUH data separately for each outcome measure. For example, to produce correlations between the 2002-2003 and 2007-2008 state estimates for past month marijuana use, four age groups (12 to 17, 18 to 25, 26 to 34, and 35 or older) by two time periods (2002-2003 and 2007-2008), that is, eight subpopulation-specific models, were fitted each with its own set of fixed and random effects. In this case, the general covariance matrices for the state and within-state random effects were 8 × 8 matrices corresponding to the eight element (age group × time period) vectors of random effects.
A study was conducted using 2002-2003 versus 2007-2008 data and 2002-2003 versus 2008-2009 data.6 When the actual (modeled) correlation was replaced by an average correlation of those 2 years, the p values of testing differences between estimates from both sets of comparisons were fairly similar. In most cases, they had the same conclusion of whether the test between 2002-2003 and 2007-2008 and the test between 2002-2003 and 2008-2009 was statistically significant or not. Only a few tests changed their significance7 depending on which correlation (actual or the average) was used. For all of these cases where significance changed, the p values were close to 0.05 (i.e., borderline cases). Given these results, it was decided, starting in 2014-2015, that generalized correlations could be used to estimate long-term change.
1 Note that in prior state small area estimation (SAE) reports, 2002-2003 aggregated data were used as the baseline against which long-term changes for state-level estimates were compared. However, starting in 2014-2015, 2008-2009 aggregated data are now being used as the baseline so that mental health measures can also be included in long-term change testing.
2 See the tables in Appendix B of the following report, which is available at http://www.samhsa.gov/data/: Hughes, A., Muhuri, P., Sathe, N., & Spagnola, K. (2011). State estimates of substance use and mental disorders from the 2008-2009 National Surveys on Drug Use and Health (HHS Publication No. SMA 11-4641, NSDUH Series H-40). Rockville, MD: Substance Abuse and Mental Health Services Administration, Center for Behavioral Health Statistics and Quality.
3 In previous years (with the exception of 2002-2003 vs. 2011-2012), the correlations were produced by simultaneously modeling the 4 years of data instead of using the generalized correlations. See the "NSDUH: Comparison of 2008-2009 and 2014-2015 Population Percentages" at http://www.samhsa.gov/data/ for more info about simultaneous modeling.
4 Rubin, D. B. (1987). Multiple imputation for nonresponse in surveys (Wiley Series in Probability and Mathematical Statistics: Applied Probability and Statistics). New York, NY: John Wiley & Sons.
5 Correlations were available for 2002-2003 versus 2009-2010 for NSDUH data that included falsified cases, as well as 2009-2010 data excluding falsified cases (for more details on falsification and the revision of 2006 to 2010 data, see Section A.7 of the "2010-2011 National Survey on Drug Use and Health: Guide to State Tables and Summary of Small Area Estimation Methodology" at http://www.samhsa.gov/data/). Note that the correlations for 2002-2003 versus 2007-2008 and 2002-2003 versus 2008-2009 were also based on falsified data.
6 More details on this study will be available at http://www.samhsa.gov/data/.
7 A total of 61 out of 9,632 tests across all outcomes, states, and age groups changed their conclusion from significant to nonsignificant and vice versa.
Long description, Equation 1: The log-odds ratio, lor sub s and a, is defined as the natural logarithm of the ratio of two quantities. The numerator of the ratio is pi 2 sub s and a divided by 1 minus pi 2 sub s and a. The denominator of the ratio is pi 1 sub s and a divided by 1 minus pi 1 sub s and a.
Long description end. Return to Equation 1.
Long description, Equation 2: The estimate of the log-odds ratio, lor hat sub s and a, is defined as the natural logarithm of the ratio of two quantities. The numerator of the ratio is p 2 sub s and a divided by 1 minus p 2 sub s and a. The denominator of the ratio is p 1 sub s and a divided by 1 minus p 1 sub s and a, where p 1 sub s and a represents the 2008-2009 state estimates and p 2 sub s and a represents the 2014-2015 state estimates.
Long description end. Return to Equation 2.
Long description, Equation 3: Variance v of the estimate of the log-odds ratio, lor hat sub s and a, is a function of three quantities: q1, q2, and q3. It is expressed as the sum of q1 and q2 minus q3. Quantity q1 is the variance v of the natural logarithm of Theta 1 hat, quantity q2 is the variance v of the natural logarithm of Theta 2 hat, and quantity q3 is 2 times the covariance between the natural logarithm of Theta 1 hat and the natural logarithm of Theta 2 hat.
Long description end. Return to Equation 3.
Long description, Equation 4: The covariance between the natural logarithm of Theta 1 hat and the natural logarithm of Theta 2 hat is equal to the correlation between the natural logarithm of Theta 1 hat and the natural logarithm of Theta 2 hat multiplied by the square root of the product of the variance v of the natural logarithm of Theta 1 hat and the variance v of the natural logarithm of Theta 2 hat.
Long description end. Return to Equation 4.