Table 3 Analysis of odds ratios of maternal risks in monozygotic twins compared to dizygotic twins
Maternal outcomes | DZT (N = 6101) | MZT (N = 164) | cOR (95% CI) | aOR (95% CI)a |
|---|---|---|---|---|
Hypertensive disorders of pregnancy | 471 (7.72%) | 12 (7.32%) | 0.94 (0.49–1.64) | 0.78(0.32–1.58) |
Gestational diabetes | 564 (9.24%) | 9 (5.49%) | 0.57 (0.27–1.06) | 0.66(0.28–1.35) |
Intrahepatic cholestasis of pregnancy | 58 (0.95%) | 3 (1.83%) | 1.94 (0.47–5.32) | 1.99(0.32–6.68) |
Placenta previa | 47 (0.77%) | 4 (2.44%) | 3.22 (0.96–8.03) | 1.95 (0.31–6.59) |
Placental abruption | 17 (0.28%) | 0 (0.00%) | NA | NA |
Preterm premature rupture of the membranes | 925 (15.2%) | 42 (25.6%) | 1.93 (1.33–2.73) | 2.42 (1.54–3.70) |
Cesarean delivery | 5874 (96.3%) | 160 (97.6%) | 1.55 (0.65–5.05) | 1.17(0.48–3.85) |