Characteristic | Monochorionic twins (N=241) | Dichorionic twins (N=172) | Adjusted OR (95% CI) | P-value |
---|---|---|---|---|
Antepartum complications – total n (%) | 9 (3.7) | 11 (6.4) | 0.74 (0.28, 1.94) | 0.536 |
• Placenta previa – n (%) | 2 (0.8) | 5 (2.9) | ||
• Abruption – n (%) | 2 (0.8) | 0 (0.0) | ||
• Placenta accreta syndrome – n (%) | 1 (0.4) | 1 (0.6) | ||
• Prolapsed cord – n (%) | 1 (0.4) | 1 (0.6) | ||
• Vasa previa – n (%) | 0 (0.0) | 0 (0.0) | ||
• Chorioamnionitis – n(%) | 2 (0.8) | 0 (0.0) | ||
• Pulmonary edema – n (%) | 1 (0.4) | 3 (1.7) | ||
• Congestive heart failure – n (%) | 0 (0) | 1 (0.6) | ||
Twin-related complications – total n (%) | 114 (47.3) | 40 (23.3) | 2.88 (1.83, 4.54) | <0.001 |
• Discordant twin – n (%) | 92 (38.2) | 36 (20.9) | ||
• Selected fetal growth restriction – n (%) | 45 (18.7) | 10 (5.8) | ||
• Twin-to-twin transfusion syndrome (TTTS) – n (%) | 30 (12.5) | 0 (0.0) | ||
• Acardiac twins – n (%) | 6 (2.5) | 0 (0.0) | ||
• Single fetal demise – n (%) | 24 (10.0) | 6 (3.5) | ||
• Twin anemia-polycythemia sequence (TAPS) | 1 (0.4) | 0 (0) | ||
• Twin reversed arterial perfusion (TRAP sequence) | 3 (1.2) | 0 (0) | ||
• Conjoined | 3 (1.2) | 0 (0) | ||
Pregnancy induced hypertension – total n (%) | 25 (10.4) | 20 (11.6) | 0.83 (0.42, 1.64) | 0.596 |
• Chronic hypertension | 3 (1.2) | 3 (1.7) | ||
• Gestational hypertension | 5 (2.1) | 1 (0.6) | ||
• Preeclampsia without severe features | 8 (3.3) | 6 (3.5) | ||
• Preeclampsia with severe features | 8 (3.3) | 10 (5.8) | ||
• Eclampsia | 1 (0.4) | 0 (0.0) | ||
Gestational diabetes mellitus – total n (%) | 19 (7.9) | 18 (10.5) | 1.08 (0.49, 2.41) | 0.845 |
• Insulin control – n (%) | 4 (1.7) | 6 (3.5) | ||
Postpartum hemorrhage | 51 (21.2) | 49 (28.5) | 0.73 (0.45, 1.17) | 0.187 |
Intraoperative intervention – total n (%) | 13 (5.4) | 6 (3.5) | 2.73 (0.92, 8.05) | 0.069 |
ICU admission – n (%) | 0 (0.0) | 6 (3.5) | NA | |
Blood transfusion – n (%) | 2 (0.8) | 2 (1.2) | 1.36 (0.18, 10.38) | 0.766 |