Table 1.
Patient characteristics
| Group I (n = 958) | Group II (n = 588) | Total (n = 1564) | p | |
|---|---|---|---|---|
| Age (years) | 32.5 ± 5.1 | 32.5 ± 4.9 | 32.5 ± 5.0 | 0.702 |
| Parity | 2.4 ± 0.8 | 2.3 ± 0.8 | 2.4 ± 0.80 | 0.055 |
| Gestational age (weeks) | 39.0 ± 2.1 | 39.0 ± 2.1 | 39.1 ± 2.1 | 0.182 |
| BMI (kg/m2) | 25.4 ± 5.6 | 26.0 ± 6.2 | 25.7 ± 5.8 | 0.197 |
| Previous vaginal birth | 211 (28.7%) | 136 (23.6%) | 347 (26.4%) | 0.036 |
| Prostaglandin used | 264 (27.6%) | 213 (36.2%) | 477 (30.9%) | < 0.001 |
| Oxytocin used | 410 (42.9%) | 160 (27.2%) | 570 (36.9%) | < 0.001 |
| Oxytocin and prostaglandin used | 117 (12.2%) | 61 (10.4%) | 178 (11.5%) | 0.271 |
| Gestational diabetes | 110 (11.5%) | 61 (10.4%) | 171 (11.1%) | 0.503 |
| Hypertensive, pregnancy-related disease | 51 (5.3%) | 34 (5.8%) | 85 (5.5%) | 0.699 |
| Birthweight of previous infant delivered by CD (g) | 3049 ± 811 | 3059 ± 816 | 3052 ± 811 | 0.649 |
| Neonatal weight (g) | 3351 ± 587 | 3332 ± 586 | 3344 ± 586 | 0.757 |
| Preterm birth (≤ 36 + 6 weeks of gestation) | 114 (11.9%) | 72 (12.2%) | 186 (12.0%) | 0.840 |
| Median duration of the second stage of labor (minutes) (n = 789) | 57.4 ± 56.3 | 65.4 ± 60.7 | 61.0 ± 58.5 | 0.098 |
| Median duration of the second stage of labor (minutes) for patients with previous vaginal birth (n = 227) | 28.3 ± 38.3 | 31.82 ± 42.3 | 29.91 ± 40.1 | 0.910 |
| Median duration of the second stage of labor (minutes) for patients without previous vaginal birth (n = 560) | 69.3 ± 58.2 | 79.3 ± 61.9 | 73.8 ± 60.0 | 0.045 |