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Differences in 7-year obesity incidence between incident parous and nulliparous women, before and after propensity-score matching, National Longitudinal Study of Adolescent Health, 1996–2008
| Matching scheme, caliper | Total N | Parous N | Obesity incidence | Incidence difference (95% CI) | |
|---|---|---|---|---|---|
|
| |||||
| Parous | Nulliparous | ||||
| Unmatched | 2731 | 569 | 19.3% | 16.1% | 3.2 (−0.3, 6.6) |
| 1:1 matching, no replacement | 2715 | 553 | 19.7% | 19.7% | 0.0 (−4.7, 4.7) |
| 1:1 matching, with replacement | 2730 | 568 | 19.4% | 18.5% | 0.9 (−4.9, 6.7) |
