TABLE 4.
Multivariate Models for 5-Year Risk of Parity-Related Obesity: National Longitudinal Survey of Youth, 1980–1990
| Models | Unadjusted RRa (95% CI) | Adjusted RR (95% CI) |
| Given birth vs never given birth | 2.7 (2.0, 3.6) | 3.5 (2.4, 4.9) |
| Primiparous vs nulliparous | 2.0 (1.2, 3.1) | 2.8 (1.5, 5.0) |
| Multiparous vs nulliparous | 3.0 (2.2, 4.0) | 3.8 (2.6, 5.6) |
| Multiparous vs primiparous | 1.5 (0.97, 2.3) | 1.4 (0.89, 2.4) |
Note. RR = relative risk; CI = confidence interval. All models adjusted for chronological age, race/ethnicity, marital status, residence, baseline height and weight, smoking, and maternal education status.
a
Given the prospective nature of the data, RRs were approximated with odds ratios from logistic regression.