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Differences in obesity prevalence between parous and nulliparous women, before and after propensity-score matching, National Longitudinal Study of Adolescent Health, wave 4 (2008)
| Matching scheme, caliper | Total N | Parous N | Obesity prevalence | Prevalence difference (95% CI) | |
|---|---|---|---|---|---|
|
| |||||
| Parous | Nulliparous | ||||
| Unmatched | 6601 | 3501 | 40.9% | 33.6% | 7.3 (4.9, 9.6) |
| 1:1 matching, no replacement | 5438 | 2338 | 38.9% | 38.3% | 0.6 (−2.2, 3.3) |
| 1:1 matching, with replacement | 6592 | 3492 | 40.8% | 41.7% | −0.9 (−4.9, 3.2) |
