Table 1.
Past-year drug usea by sexual orientation among female and male youth (12–23 years) in the GUTS cohort (1999–2005)
| Age-standardized prevalence (%) | Adjusted RR (95% CI)b | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Drug use by gender | Completely Heterosexual |
Mostly Heterosexual |
Bisexual | Lesbian/ Gay |
Mostly Heterosexual | Bisexual | Lesbian/Gay | |||
| Marijuana | ||||||||||
| Female | 18.6 | 42.8 | 59.9 | 49.6 | 1.97* | (1.82, 2.13) | 2.63* | (2.35, 2.98) | 1.74* | (1.29, 2.36) |
| Male | 20.9 | 41.9 | 38.5 | 32.1 | 1.87* | (1.65, 2.13) | 1.72* | (1.29, 2.30) | 1.56* | (1.21, 2.01) |
| Any illicit drug other than marijuana |
||||||||||
| Female | 4.4 | 17.5 | 31.1 | 21.0 | 3.40* | (2.91, 3.97) | 5.13* | (4.05, 6.50) | 3.07* | (1.70, 5.55) |
| Male | 5.9 | 15.0 | 20.4 | 13.3 | 2.32* | (1.78, 3.03) | 2.87* | (1.64, 5.03) | 1.89* | (1.17, 3.06) |
| Ecstasy | ||||||||||
| Female | 1.8 | 8.0 | 14.8 | 8.7 | 3.91* | (3.07, 4.97) | 6.68* | (4.74, 9.40) | 4.56* | (2.12, 9.87) |
| Male | 1.7 | 4.2 | 12.3 | 7.4 | 2.19* | (1.23, 3.90) | 6.27* | (3.01, 13.1) | 2.92* | (1.34, 6.39) |
| Cocaine | ||||||||||
| Female | 1.8 | 7.2 | 9.8 | 6.9 | 3.38* | (2.61, 4.39) | 4.06* | (2.60, 6.34) | 3.57* | (1.58, 8.08) |
| Male | 2.4 | 7.1 | 3.2 | 6.8 | 2.67* | (1.73, 4.13) | 1.29 | (0.34, 4.85) | 2.48* | (1.23, 5.00) |
| Heroin | ||||||||||
| Female | 0.1 | 0.9 | 0.8 | 0 | 7.80* | (3.97, 15.3) | 5.49* | (1.21, 24.9) | --- c | --- c |
| Male | 0.2 | 1.0 | 1.3 | 2.6 | 5.33* | (1.84, 15.5) | 7.35 | (0.92, 58.8) | 6.61* | (1.44, 30.3) |
| Amphetamines | ||||||||||
| Female | 1.3 | 5.7 | 14.7 | 8.3 | 3.98* | (2.94, 5.38) | 9.35* | (6.34, 13.8) | 4.56* | (1.30, 16.1) |
| Male | 1.5 | 5.6 | 6.2 | 4.5 | 3.71* | (2.32, 5.96) | 3.90* | (1.34, 11.2) | 3.07* | (1.30, 7.27) |
| LSD/Mushrooms | ||||||||||
| Female | 2.3 | 9.7 | 19.3 | 14.3 | 3.84* | (3.10, 4.76) | 6.40* | (4.64, 8.81) | 4.91* | (2.64, 9.12) |
| Male | 4.2 | 11.5 | 8.0 | 8.2 | 2.33* | (1.66, 3.25) | 1.46 | (0.53, 4.03) | 1.87* | (1.04, 3.35) |
| Misuse of prescription drugs |
||||||||||
| Female | 5.7 | 16.6 | 27.8 | 16.5 | 2.74* | (2.37, 3.17) | 4.07* | (3.21, 5.16) | 1.84 | (0.87, 3.88) |
| Male | 6.0 | 11.4 | 16.4 | 13.0 | 1.92* | (1.44, 2.56) | 2.58* | (1.41, 4.72) | 2.04* | (1.29, 3.21) |
Abbreviations: RR, Risk Ratio; CI, Confidence Interval.
Results based on repeated measures observations. Among females, number of observations is 15051 completely heterosexual, 1313 mostly heterosexual, 259 bisexual, and 63 lesbian. Among males, number of observations is 9667 completely heterosexual, 391 mostly heterosexual, 63 bisexual, and 130 gay.
Multivariable generalized estimating equations models adjust for age, race/ethnicity, and region of residence. All within-gender comparisons used completely heterosexual individuals as the referent group.
Cannot be estimated because no lesbians reported heroin use.
Statistically significant (p<.05).