TABLE 3—
Adjusted Odds of Substance Use Among Females Aged 15–24 Years: National Survey of Family Growth, United States, 2002
| SO Dimensions | Model 1, AOR (95% CI) | Model 2, AOR (95% CI) |
| Tobacco | ||
| Sexual identity | ||
| Heterosexual (Ref) | 1.00 | 1.00 |
| Lesbian or bisexual | 3.35 (2.08, 5.39)a | 1.44 (0.74, 2.81) |
| Uncertain | 1.48 (0.87, 2.52)b | 1.17 (0.67, 2.03) |
| Sexual attraction | ||
| Opposite gender only (Ref) | 1.00 | 1.00 |
| Same or both genders | 2.06 (1.55, 2.73)a | 0.92 (0.65, 1.31) |
| Uncertain | 2.50 (0.76, 8.19) | 1.81 (0.46, 7.07) |
| Sexual experience | ||
| Opposite gender only (Ref) | 1.00 | 1.00 |
| Same gender only | 0.59 (0.16, 2.22) | 0.46 (0.10, 2.10) |
| Both genders | 2.97 (2.12, 4.16)ac | 2.71 (1.82, 4.04)ac |
| None | 0.12 (0.07, 0.22)acd | 0.12 (0.07, 0.22)ad |
| Marijuana | ||
| Sexual identity | ||
| Heterosexual (Ref) | 1.00 | 1.00 |
| Lesbian or bisexual | 2.68 (1.57, 4.55)a | 0.74 (0.38, 1.44) |
| Uncertain | 1.29 (0.79, 2.10)b | 1.00 (0.57, 1.74) |
| Sexual attraction | ||
| Opposite gender only (Ref) | 1.00 | 1.00 |
| Same or both genders | 2.98 (2.22, 4.01)a | 1.95 (1.32, 2.88)a |
| Uncertain | 1.35 (0.43, 4.17) | 1.23 (0.38, 3.93) |
| Sexual experience | ||
| Opposite gender only (Ref) | 1.00 | 1.00 |
| Same gender only | 1.23 (0.44, 3.48) | 0.97 (0.32, 2.99) |
| Both genders | 2.58 (1.86, 3.58)a | 1.93 (1.32, 2.81)a |
| None | 0.12 (0.08, 0.18)acd | 0.12 (0.08, 0.18)acd |
| Other drugs | ||
| Sexual identity | ||
| Heterosexual (Ref) | 1.00 | 1.00 |
| Lesbian or bisexual | 6.88 (3.22, 14.72)a | 2.10 (0.81, 5.45) |
| Uncertain | 1.64 (0.74, 3.63)b | 1.19 (0.43, 3.30) |
| Sexual attraction | ||
| Opposite gender only (Ref) | 1.00 | 1.00 |
| Same or both genders | 4.17 (2.51, 6.91)a | 1.51 (0.78, 2.90) |
| Uncertain | 2.72 (0.45, 16.56) | 1.47 (0.21, 10.14) |
| Sexual experience | ||
| Opposite gender only (Ref) | 1.00 | 1.00 |
| Same gender only | —e | —e |
| Both genders | 4.88 (2.81, 8.46)a | 2.79 (1.59, 4.91)a |
| None | 0.07 (0.02, 0.29)ad | 0.08 (0.02, 0.31)ad |
| Binge drinking | ||
| Sexual identity | ||
| Heterosexual (Ref) | 1.00 | 1.00 |
| Lesbian or bisexual | 2.24 (1.36, 3.69)a | 1.02 (0.58, 1.80) |
| Uncertain | 1.14 (0.70, 1.86) | 0.94 (0.57, 1.54) |
| Sexual attraction | ||
| Opposite gender only (Ref) | 1.00 | 1.00 |
| Same or both genders | 2.18 (1.63, 2.90)a | 1.57 (1.06, 2.33)a |
| Uncertain | 2.23 (0.81, 6.11) | 2.42 (1.01, 5.82)a |
| Sexual experience | ||
| Opposite gender only (Ref) | 1.00 | 1.00 |
| Same gender only | 0.51 (0.17, 1.51) | 0.36 (0.12, 1.05) |
| Both genders | 1.77 (1.20, 2.62)ac | 1.33 (0.81, 2.21)c |
| None | 0.21 (0.15, 0.29)ad | 0.21 (0.15, 0.30)ad |
Note. AOR = adjusted odds ratio; CI = confidence interval; SO = sexual orientation. Model 1 shows the estimated odds of substance use by each dimension of SO considered singly. Model 2 shows the estimated odds of substance use by each dimension of SO while controlling for the other 2 dimensions. All AORs adjusted for respondent's age, age squared, race/ethnicity, and design effects. AORs in model 2 for each outcome also adjusted for behavior, attraction, and identity.
Differs from the reference category at P < .05.
Differs from lesbian/bisexual at P < .05.
Differs from those with exclusively same-gender partners at P < .05.
Differs from those with partners of both genders at P < .05.
So few women with exclusively same-gender sexual experience reported other drug use in the past 12 months that AORs could not be estimated for this group; 23 women were dropped from this analysis as a result.