Table 3.
Logistic regression of birth outcomes by sexual orientation, National Survey of Family Growth (NSFG), 2006–2019. N = 49,063 – 37,538)
| Total Population | ||||
|---|---|---|---|---|
| Unadjusted | Adjusteda | |||
| RR | 95% CI | RR | 95% CI | |
| Preterm birth (N = 37,538) | ||||
| Heterosexual-WSM | 1.00 | (Reference) | 1.00 | (Reference) |
| Heterosexual-WSW | 0.77 | (0.62, 0.94) | 0.77 | (0.64, 0.92) |
| Bisexual | 0.91 | (0.72, 1.15) | 1.02 | (0.83, 1.24) |
| Lesbian | 0.58 | (0.33, 1.02) | 0.87 | (0.53, 1.42) |
| Low birthweight (N = 35,229) | ||||
| Heterosexual-WSM | 1.00 | (Reference) | 1.00 | (Reference) |
| Heterosexual-WSW | 1.01 | (0.80, 1.27) | 0.99 | (0.79, 1.24) |
| Bisexual | 1.33 | (1.00, 1.78) | 1.2 | (0.89, 1.61) |
| Lesbian | 1.03 | (0.59, 1.80) | 0.95 | (0.56, 1.62) |
| Miscarriage (N = 49,063) | ||||
| Heterosexual-WSM | 1.00 | (Reference) | 1.00 | (Reference) |
| Heterosexual-WSW | 1.18 | (0.97, 1.42) | 1.12 | (0.93, 1.35) |
| Bisexual | 1.34 | (1.17, 1.55) | 1.34 | (1.16, 1.54) |
| Lesbian | 1.9 | (0.87, 4.19) | 1.95 | (0.94, 4.08) |
| Stillbirth (N = 38,549) | ||||
| Heterosexual-WSM | 1.00 | (Reference) | 1.00 | (Reference) |
| Heterosexual-WSW | 1.22 | (0.84, 1.75) | 1.12 | (0.77, 1.63) |
| Bisexual | 1.5 | (1.03, 2.19) | 1.27 | (0.86, 1.87) |
| Lesbian | 4.09 | (1.41, 11.89) | 3.58 | (1.30, 9.79) |
RR risk ratio
aAdjusted for maternal age, education, Federal poverty level, nativity, previous preterm birth