| Adjusted Risk Ratioa (95% Confidence Interval, P value) | |
---|---|---|
Birth outcome | Model 1 (All births) | Model 2 (Singleton births) |
Total | ||
 Stillbirth | 1.21 (0.71–2.04, 0.484) | 1.29 (0.75–2.23, 0.359) |
 Preterm birth | 1.25 (1.06–1.48, 0.010) | 1.22 (1.02–1.47, 0.033) |
 Low birth weight | 1.08 (0.89–1.31, 0.430) | 1.03 (0.84–1.28, 0.755) |
 Small for gestational age | 0.93 (0.71–1.22, 0.583) | 0.91 (0.68–1.21, 0.524) |
Girls | ||
 Stillbirth | 1.14 (0.58–2.26, 0.705) | 1.28 (0.63–2.63, 0.494) |
 Preterm | 1.09 (0.84–1.41, 0.535) | 1.07 (0.81–1.42, 0.638) |
 Low birth weight | 1.00 (0.76–1.32, 0.991) | 0.98 (0.72–1.33, 0.897) |
 Small for gestational age | 0.85 (0.55–1.33, 0.489) | 0.84 (0.53–1.35, 0.474) |
Boys | ||
 Stillbirth | 1.25 (0.57–2.75, 0.579) | 1.28 (0.57–2.86, 0.547) |
 Preterm | 1.40 (1.12–1.75, 0.002) | 1.36 (1.07–1.73, 0.012) |
 Low birth weight | 1.17 (0.89–1.53, 0.253) | 1.09 (0.82–1.47, 0.547) |
 Small for gestational age | 1.03 (0.84–1.26, 0.788) | 1.01 (0.82–1.24, 0.943) |