Variables PCOS Non-PCOS P- value
No. of singleton livebirths 1356 11701
Survivors of a vanishing co-twin 138 (10.2) 1245 (10.6) 0.600
Maternal complications
PROM, n (%) 35 (2.6) 261 (2.2) 0.412
Abnormal placentation, n (%) 10 (0.7) 108 (0.9) 0.494
Hypertensive disorder, n (%) 142 (10.5) 731(6.2) <0.001
HBP 90 (6.6) 541 (4.6) 0.001
Preeclampsia 52 (3.8) 190 (1.6) <0.001
GDM, n (%) 174 (12.8) 812 (6.9) <0.001
Cholestasis, n (%) 10 (0.7) 46 (0.4) 0.066
Mode of deliverya, n (%)
Vaginal 444 (32.7) 3601 (30.8) 0.138
Caesarean section 912 (67.3) 8100 (69.2)
Neonatal outcomes
PTB, n (%)
<37 weeks 148 (10.9) 1021 (8.7) 0.008
<32 weeks 24 (1.8) 117 (1.0) 0.009
Birthweight g, n (%) 3.34 ± 0.57 3.30 ± 0.52 0.023
LBW, n (%)
<2500 g 80 (5.9) 607 (5.2) 0.266
<1500 g 13 (1.0) 77 (0.7) 0.205
Macrosomia >4000 g, n (%) 158 (11.7) 984 (8.4) <0.001
Newborn sexa, n (%)
Boy 725 (53.5) 6220 (53.2) 0.830
Girl 631 (46.5) 5481 (46.8)