Table 2.
Linear trend comparison | |||||||
---|---|---|---|---|---|---|---|
Unadjusted prevalence (%) | Change 2007–2015 | ||||||
2007 | 2009 | 2011 | 2013 | 2015 | F | p | |
Boys | |||||||
Lifetime alcohol use | |||||||
Heterosexual | 70.32 | 68.06 | 66.40 | 61.26 | 52.32 | 85.28a | <0.001 |
Bisexual | 89.20 | 90.99 | 74.89 | 83.61 | 79.85 | 5.42 | 0.020 |
Gay | 71.31 | 85.74 | 78.31 | 79.71 | 77.07 | 0.04 | 0.843 |
Unsure | 71.38 | 36.14 | 48.93 | 61.83 | 57.81 | 0.12 | 0.724 |
Early onset use | |||||||
Heterosexual | 20.84 | 23.08 | 19.32 | 18.19 | 15.97 | 32.74 | <0.001 |
Bisexual | 45.79 | 47.00 | 32.11 | 31.66 | 28.87 | 1.71 | 0.191 |
Gay | 39.81 | 19.76 | 31.23 | 28.96 | 24.71 | 2.78 | 0.096 |
Unsure | 36.71 | 11.60 | 22.07 | 27.02 | 25.99 | 0.01 | 0.909 |
Past 30-day use | |||||||
Heterosexual | 40.12 | 39.79 | 36.81 | 32.63 | 27.96 | 66.18 | <0.001 |
Bisexual | 58.37 | 44.60 | 55.32 | 45.64 | 37.89 | 6.63 | 0.010 |
Gay | 36.02 | 54.30 | 56.03 | 46.91 | 43.16 | 0.18 | 0.671 |
Unsure | 55.34 | 15.03 | 28.02 | 43.88 | 34.21 | 0.70 | 0.404 |
Past 30-day HED | |||||||
Heterosexual | 25.03 | 26.65 | 23.21 | 18.27 | 14.06 | 87.72 | <0.001 |
Bisexual | 23.75 | 23.74 | 32.48 | 27.21 | 19.70 | 0.18 | 0.667 |
Gay | 20.45 | 31.69 | 38.29 | 25.89 | 20.28 | 0.02 | 0.886 |
Unsure | 35.07 | 5.61 | 26.29 | 31.71 | 24.32 | 0.30 | 0.582 |
Girls | |||||||
Lifetime alcohol use | |||||||
Heterosexual | 73.88 | 70.30 | 70.47 | 65.57 | 60.43 | 55.74 | <0.001 |
Bisexual | 87.89 | 87.18 | 85.04 | 84.55 | 73.40 | 9.99 | 0.002 |
Lesbian | 86.04 | 87.52 | 83.57 | 86.26 | 66.67 | 3.50 | 0.061 |
Unsure | 72.03 | 71.34 | 65.50 | 67.60 | 58.64 | 3.86 | 0.050 |
Early onset use | |||||||
Heterosexual | 15.45 | 15.38 | 14.17 | 12.53 | 11.14 | 24.08 | <0.001 |
Bisexual | 27.32 | 33.99 | 30.31 | 27.77 | 22.39 | 2.18 | 0.134 |
Lesbian | 20.81 | 30.76 | 53.04 | 27.97 | 24.41 | 0.23 | 0.634 |
Unsure | 28.86 | 16.70 | 19.83 | 22.89 | 15.45 | 1.19 | 0.276 |
Past 30-day use | |||||||
Heterosexual | 41.49 | 37.68 | 37.68 | 32.93 | 30.63 | 35.48 | <0.001 |
Bisexual | 66.92 | 41.97 | 51.49 | 52.03 | 43.58 | 8.40 | 0.004 |
Lesbian | 38.53 | 74.29 | 47.57 | 50.81 | 34.62 | 2.94 | 0.086 |
Unsure | 39.25 | 35.33 | 40.20 | 34.83 | 27.43 | 2.74 | 0.098 |
Past 30-day HED | |||||||
Heterosexual | 21.57 | 21.72 | 19.80 | 15.00 | 13.59 | 34.47 | <0.001 |
Bisexual | 35.24 | 26.15 | 27.37 | 22.89 | 21.47 | 3.12 | 0.078 |
Lesbian | 14.53 | 44.48 | 17.26 | 26.96 | 13.20 | 0.24 | 0.625 |
Unsure | 29.87 | 18.08 | 18.58 | 18.91 | 15.82 | 2.15 | 0.143 |
Data were weighted and design adjusted. Linear trend comparisons were adjusted for age, race/ethnicity, and state. F-values in bold indicate p < 0.05.
Quadratic models indicated a significant change from 2007 to 2009, 2011 to 2013, and 2013 to 2015.
HED, heavy episodic drinking.