Table 4. Sensitivity analyses of the association of high school BMI ≥30 kg/m2 and lifetime nulliparity.
| Analytic sample a | n | Odds ratio (95% CI) b |
|---|---|---|
| Full analytic sample | 3098 | 2.84(1.59-5.10) |
| Excluding women who reported tubal factor infertility | 3032 | 2.82 (1.57–5.09) |
| Excluding women who reported male factor infertility | 3044 | 2.94 (2.62–5.34) |
| Excluding users of fertility medications | 2940 | 3.21(1.77–5.83) |
| Excluding continuous users of birth control pills during mid-reproductive years, | 2852 | 3.10 (1.65–5.82) |
| Excluding women who stated that they “never tried to get pregnant” | 3074 | 2.59 (1.42–4.71) |
| Excluding women who reported preference for same-sex relationship | 3055 | 2.84 (1.57–5.15) |
| Excluding all of the above-mentioned groups considered to have a potential reason for nulliparity | 2437 | 3.41 (1.66–7.00) |
a
Logistic regression models with lifetime nulliparity as the model outcome, adjusted for adult BMI at baseline, history of non-gestational amenorrhea, marital status, ethnicity, study site, education, and socioeconomic status
b
Odds ratio for the association of the reported HSBMI ≥30 kg/m2 with the model outcome after adjustment for multiple covariates