Blood loss parameters | Women with IOL (n = 380) | Women with SOL (n = 585) | p |
---|---|---|---|
Estimated blood loss (mL) | 400 (300–600) | 400 (300–500) | 0.03 a |
Estimated blood loss ≥500 mL | 152 (40%) | 195 (33.3%) | 0.03 b |
Estimated blood loss ≥1000 mL | 24 (6.3%) | 37 (6.3%) | 1.00 b |
Estimated blood loss ≥1500 mL | 9 (2.4%) | 10 (1.7%) | 0.47 b |
Postpartum Hemorrhage | 94 (24.7%) | 124 (21.2%) | 0.20 b |
Delta hemoglobin (g/L) | 13 (5–21) | 16 (9.0–24.0) | < 0.01 a |
Delta hemoglobin ≥30 g/L | 49 (12.9%) | 81 (13.8%) | 0.67 b |
Blood transfusion | 1 (0.3%) | 0 (0.0%) | 0.39 c |
Secondary maternal outcome | |||
 Vaginal delivery | 238 (62.6%) | 390 (66.7%) | 0.20 b |
 Operative vaginal delivery | 51 (13.4%) | 72 (12.3%) | 0.61 b |
 Second stage of labor > 120 min | 93 (30.6%) | 132 (26.7%) | 0.23 b |
 Unplanned cesarean section | 91 (24%) | 123 (21.0%) | 0.29 b |
 Maternal ICU admission | 2 (0.5%) | 0 (0.0%) | 0.15 c |
 Uterine atony | 28 (7.4%) | 25 (4.3%) | 0.04 b |
 Retained placenta | 10 (2.6%) | 16 (2.7%) | 0.92 b |
 Retained placental tissue | 15 (3.9%) | 13 (2.2%) | 0.12 b |
 Placental abruption | 1 (0.3%) | 5 (0.9%) | 0.41 c |
 Uterine rupture | 1 (0.3%) | 2 (0.3%) | 1.0 c |
 Length of hospital stay after delivery | 4 (3–4) | 4 (3–4) | 0.07 a |
 Anal sphincter tear | 6 (1.6%) | 4 (0.7%) | 0.20 c |
Secondary Neonatal outcome | |||
 Chorioamnionitis | 5 (1.3%) | 3 (0.5%) | 0.28 c |
 Shoulder dystocia | 7 (1.8%) | 10 (1.7%) | 0.88 b |
 Meconium staining | 70 (18.4%) | 107 (18.3%) | 0.96 b |
 Umbilical arterial pH < 7.1 | 5 (1.3%) | 11 (1.9%) | 0.50 b |
 5′ Apgar score < 7 | 4 (1.1%) | 6 (1.0%) | 1.0 c |
 10′ Apgar score < 7 | 1 (0.3%) | 0 (0%) | 0.39 c |
 Admission to neonatal care unit | 23 (6.1%) | 16 (2.7%) | 0.11 b |