Maternal and infantile baseline demographic and clinical characteristics of each group
| Characteristics | Group 1, no. (%) (N=2483) | Group 2, no. (%) (N=2555) | p Value |
|---|---|---|---|
| Maternal baseline | |||
| Maternal age, mean (SD), years | 34.5 (4.1) | 35.3 (4.4) | <0.001 |
| Multipara | 1083 (43.6) | 1055 (41.2) | 0.09 |
| Multiple births | 96 (3.8) | 126 (4.9) | 0.06 |
| Premature rupture of membranes | 375 (15.1) | 395 (15.4) | 0.72 |
| Meconium staining of the amniotic fluid | 362 (14.5) | 403 (15.7) | 0.23 |
| Abruptio placentae | 37 (1.4) | 13 (0.5) | <0.001 |
| Labour induction | 523 (21.0) | 362 (14.1) | <0.001 |
| Epidural labour analgesia | 1016 (40.9) | 1153 (45.1) | 0.002 |
| Normal vaginal delivery | 1411 (56.8) | 1367 (53.5) | 0.01 |
| Operative vaginal delivery | 409 (16.4) | 457 (17.8) | 0.18 |
| Planed Caesarean section | 433 (17.4) | 485 (18.9) | 0.15 |
| Emergent Caesarean section | 228 (9.1) | 246 (9.6) | 0.58 |
| Infantile baseline | |||
| Gestational week, mean (SD), weeks | 38.7 (1.1) | 38.7 (1.1) | 0.93 |
| Male sex | 1280 (51.5) | 1294 (50.6) | 0.52 |
| Birth weight, mean (SD), g | 3003 (374) | 3000 (386) | 0.80 |
| <2500 g | 205 (8.2) | 227 (8.8) | 0.42 |
| Low Apgar score at 1 min (≤7) | 180 (7.2) | 234 (9.1) | 0.01 |
| Low Apgar score at 5 min (≤7) | 24 (0.9) | 50 (1.9) | 0.003 |
| Hospitalized days, mean (SD), days | 8.14 (2.58) | 8.17 (3.32) | 0.03 |