Table 6.
Odds of Pregnancy by Sexual Identity, Attraction, and Experience, Adjusted for Substance Use (Model 5) and Sexual Risk Behaviors (Model 6), Stratified by United States National Survey of Family Growth Old and New Survey Cycles, Females 15–19 Years of Age
| 2002-mid-September 2013 (old cycle; n = 4471), Model 5,aaOR (95% CI) | pb | Late September 2013–2015, (new cycle; n = 1010), Model 5,aaOR (95% CI) | pb | 2002-mid-September 2013 (old cycle; n = 4471), Model 6,caOR (95% CI) | pb | Late September 2013–2015 (new cycle; n = 1010), Model 6,caOR (95% CI) | pb | |
|---|---|---|---|---|---|---|---|---|
| Sexual orientation | ||||||||
| Sexual identity | ||||||||
| Heterosexual | 1.00 | 1.00 | 1.00 | 1.00 | ||||
| Gay/lesbian or bisexual | 1.21 (0.68–2.13) | 0.519 | 1.16 (0.46–2.93) | 0.750 | 1.72 (0.72–4.11) | 0.222 | 1.92 (0.28–13.35) | 0.508 |
| Sexual attraction | ||||||||
| Only to males | 1.00 | 1.00 | 1.00 | 1.00 | ||||
| Only to females/to both | 0.67 (0.44–1.02) | 0.059 | 1.58 (0.65–3.85) | 0.314 | 0.52 (0.26–1.02) | 0.056 | 1.30 (0.37–4.60) | 0.684 |
| Sexual experience (Lifetime) | ||||||||
| Only males | 1.00 | 1.00 | 1.00 | 1.00 | ||||
| Both females and males | 1.72 (1.10–2.69) | 0.017 | 0.83 (0.38–1.79) | 0.627 | 0.82 (0.39–1.74) | 0.611 | 0.69 (0.18–2.67) | 0.585 |
| Demographics | ||||||||
| Age (continuous) | 1.47 (1.30–1.65) | <0.001 | 1.47 (1.09–2.00) | 0.013 | 1.17 (0.95–1.43) | 0.138 | 1.60 (1.00–2.55) | 0.049 |
| Race and ethnicity | ||||||||
| Hispanic (any race) | 2.56 (1.89–3.47) | <0.001 | 2.90 (1.57–5.37) | 0.001 | 3.48 (2.35–5.16) | <0.001 | 3.01 (1.33–6.79) | 0.008 |
| Black, non-Hispanic | 2.42 (1.71–3.41) | <0.001 | 2.77 (1.36–5.63) | 0.005 | 2.47 (1.56–3.92) | <0.001 | 4.49 (1.30–15.45) | 0.018 |
| Other race, non-Hispanic | 1.67 (0.87–3.20) | 0.126 | 1.67 (0.36–7.74) | 0.513 | 1.45 (0.59–3.55) | 0.417 | 1.55 (0.28–8.51) | 0.618 |
| White, non-Hispanic | 1.00 | 1.00 | 1.00 | 1.00 | ||||
| Past-year substance use | ||||||||
| Any drug used | ||||||||
| No | 1.00 | 1.00 | 1.00 | 1.00 | ||||
| Yes | 0.87 (0.64–1.18) | 0.365 | 1.45 (0.90–2.33) | 0.131 | 0.49 (0.32–0.77) | 0.002 | 1.14 (0.51–2.54) | 0.750 |
| Any alcohol use | ||||||||
| No | 1.00 | 1.00 | 1.00 | 1.00 | ||||
| Yes | 0.51 (0.37–0.70) | <0.001 | 0.40 (0.23–0.68) | 0.001 | 0.38 (0.24–0.61) | <0.001 | 0.56 (0.27–1.14) | 0.111 |
| Sexual risk with males | ||||||||
| Lifetime male sex partnerse | ||||||||
| 1 partner | 1.00 | 1.00 | ||||||
| 2 partners | 1.41 (0.81–2.47) | 0.222 | 3.40 (1.10–10.57) | 0.034 | ||||
| 3 or more partners | 1.52 (0.95–2.42) | 0.079 | 0.92 (0.30–2.80) | 0.885 | ||||
| Past-year condomless sexe | ||||||||
| No | 1.00 | 1.00 | ||||||
| Yes | 4.46 (2.77–7.16) | <0.001 | 11.62 (3.93–34.38) | <0.001 | ||||
| First intercourse ≤age 14e | ||||||||
| No | 1.00 | 1.00 | ||||||
| Yes | 3.79 (1.98–7.24) | <0.001 | 4.86 (1.41–16.76) | 0.013 | ||||
Results based on multivariable logistic regression models that accounted for the complex sampling method and were weighted to the population.
Adjusted for sexual identity, attraction, and experience simultaneously, as well as for age, race and ethnicity, and past-year drug and alcohol use.
Bold indicates p < 0.05.
Adjusted for sexual identity, attraction, and experience simultaneously, as well as for age, race and ethnicity, past-year drug and alcohol use, and sexual risk with males.
Includes any past-year use of marijuana, cocaine, crack, crystal methamphetamine, and/or nonprescription injection drug use.
“Intercourse” and “sex” defined as penile–vaginal intercourse with male partner(s).