Table 1.
Demographic and obstetric characteristics of the study groups
| Unvaccinated n = 1063 | Covid‐19 vaccinated n = 712 | P | |
|---|---|---|---|
| Maternal age, years | 29.5 ± 6 | 30.6 ± 5.8 | <0.01 |
| Gravidity | 4 (2–6) | 4 (2–6) | 0.15 |
| Parity | 3 (2–5] | 3 (2–6) | 0.53 |
| Previous miscarriages | 296 (27.8%) | 240 (33.7%) | 0.01 |
| Previous caesarean delivery, any | 137 (12.9%) | 117 (16.4%) | 0.04 |
| Primipara | 211 (19.8%) | 122 (17.1%) | 0.15 |
| Fertility treatments | 24 (2.3%) | 33 (4.6%) | 0.01 |
| Hypertensive disorders of pregnancy | 19 (1.8%) | 10 (1.4%) | 0.53 |
| Diabetes (pre‐gestational + gestational) | 45 (4.2%) | 45 (6.3%) | 0.05 |
| Obesity (BMI ≥ 30 kg/m2) | 140 (13.2%) | 101 (14.2%) | 0.54 |
| Multifetal gestation | 15 (1.4%) | 16 (2.2%) | 0.19 |
Data are mean ± standard deviation, median (IQR) or number (%).