- Demographics and maternal history of study participants.
| Variables | n (%) |
|---|---|
| Maternal characteristics | |
| Age (years) | |
| <25 | 591 (19.9) |
| 25 – 29 | 914 (30.8) |
| 30 – 34 | 771 (25.9) |
| ≥35 | 696 (23.4) |
| Body mass index (kg/m2) | |
| < 35 | 2265 (76.2) |
| ≥ 35 | 707 (23.8) |
| Parity | |
| 0 | 588 (19.8) |
| 1 | 712 (24.0) |
| > 1 | 1672 (56.3) |
| Maternal history | |
| Intrauterine fetal death & stillborn | 91 (3.1) |
| Neonatal death | 38 (1.3) |
| Previous miscarriage | 783 (26.4) |
| Ectopic | 9 (0.3) |
| Post-partum hemorrhage | 32 (1.1) |
| Eclampsia & preeclampsia | 34 (1.1) |
| Gestational diabetes mellitus | 264 (8.9) |
| Maternal previous co-morbidities: | |
| Anemia | 180 (6.1) |
| Coagulopathy | 13 (0.4) |
| Cardiac disease | 17 (0.6) |
| Renal disorder | 10 (0.3) |
| Autoimmune disease | 10 (0.3) |
| Stroke | 1 (0.03) |
| Thyroid disorder | 115 (3.9) |
| Hyperlipidemia | 9 (0.3) |
| Surgical history: Bariatric | 47 (1.6) |