CHARACTERISTICS/INTERVENTIONS | Adjusted OR | 95% CI | p value |
---|---|---|---|
PRIMIPAROUS, n = 73,813 | |||
Mode of delivery | |||
Vaginal spontaneous | 1 | ||
Vacuum assistance | 2.65 | 2.29-3.06 | ≤0.001 |
Epidural analgesia | 0.73 | 0.62-0.86 | ≤0.001 |
Augmentation with oxytocin | 1.42 | 1.2-1.68 | ≤0.001 |
Maternal age (year) | |||
≤19 | 1 | ||
20-29 | 1.70 | 1.11-2.62 | 0.02 |
30-39 | 2.09 | 1.35-3.24 | 0.001 |
≥40 | 1.65 | 0.85-3.22 | 0.14 |
Birth weight (g) | |||
≤2,999 | 1 | ||
3,000-3,499 | 1.4 | 1.44-2.62 | ≤0.001 |
3,500-3,999 | 3.01 | 2.25-4.03 | ≤0.001 |
≥4,000 | 4.97 | 3.67-6.74 | ≤0.001 |
Hospital A | 1 | ||
Hospital B | 1.37 | 1.08-1.74 | 0.01 |
Hospital C | 1.52 | 1.21-1.91 | ≤0.001 |
Hospital D | 3.22 | 2.64-3.93 | ≤0.001 |
Hospital E | 1.11 | 0.81-1.52 | 0.53 |
MULTIPAROUS, n = 94,824 | |||
Mode of delivery | |||
Vaginal spontaneous | 1 | ||
Vacuum assistance | 2.23 | 1.32-3.76 | 0.003 |
Episiotomy | 2.95 | 2.07-4.18 | ≤0.001 |
Augmentation with oxytocin | 1.36 | 1.00-1.84 | 0.05 |
Birth weight (g) | |||
≤2,999 | 1 | ||
3,000-3,499 | 0.91 | 0.40-2.07 | 0.83 |
3,500-3,999 | 2.48 | 1.20-5.15 | 0.014 |
≥4,000 | 3.73 | 1.80-7.77 | ≤0.001 |
Hospital A | 1 | ||
Hospital B | 1.14 | 0.69-1.87 | 0.61 |
Hospital C | 1.91 | 1.23-2.97 | 0.004 |
Hospital D | 3.03 | 1.97-4.67 | ≤0.001 |
Hospital E | 1.0 | 0.53-1.92 | 0.99 |