Table 1.
Comparison of maternal and neonatal characteristics between the 2020 group and the control group.
| 2020 group (n = 74) | Control (n = 465) | p-value | ||
|---|---|---|---|---|
| Maternal age at delivery | (years) | 34 (23–48) | 36 (22–62) | 0.0068 |
| Nulliparity | 52 (70) | 286 (62) | 0.16 | |
| Pre-pregnancy BMI | (kg/m2) | 19.8 (16.2–30.8) | 20.2 (14.9–46.5) | 0.39 |
| Gestational weight gain | (kg) | 9.9 (0–27.6) | 9.9 (-4-31) | 0.49 |
| Smoking during pregnancy | 1 (1) | 0 (0) | <0.0001 | |
| Positive PCR for SARS-CoV-2 | 2 (3) | – (−) | – | |
| Gestational diabetes | 8 (11) | 70 (15) | 0.38 | |
| Gestational weeks at delivery | (weeks) | 38 (37–40) | 39 (37–41) | <0.0001 |
| Vaginal delivery | 29 (39) | 273 (59) | 0.0023 | |
| Elective cesarean section | 26 (35) | 114 (25) | 0.12 | |
| Emergency cesarean section | 19 (26) | 78 (17) | 0.07 | |
| Birthweight | (g) | 2857 (2140–3715) | 3004 (1694–4284) | 0.0003 |
| Fetal sex (female) | 37 (50) | 210 (46) | 0.45 | |
| Apgar score (1 min) | 8 (2–9) | 8 (0–10) | 0.0081 | |
| Apgar score (5 min) | 9 (4–10) | 9 (4–10) | 0.039 | |
| Umbilical artery blood pH | 7.31 (7.20–7.44) | 7.31 (6.90–7.47) | 0.52 |
BMI: body mass index, PCR: Polymerase chain reaction test, NICU: Neonatal intensive care unit. Data are presented as median (range) or n (%).
Continuous data were compared between groups using Mann–Whitney U test. Categorical variables were analyzed using Fisher's exact test. In all tests, P < 0.05 was considered significant.