Maternal characteristics
| Maternal characteristics | No prior consent | Informed consent | P value comparing consent groups |
| Prenatal care | 128/133 (96.2%) | 644/667 (96.6%) | 0.814 |
| Rupture of Membranes (ROM) >24 hours | 32/130 (24.6%) | 211/660 (32.0%) | 0.420 |
| Chorioamnionitis | 18/121 (14.9%) | 136/633 (21.5%) | 0.282 |
| Temperature prior to delivery (°C), mean (SD) | 36.8 (0.5) | 36.9 (0.9) | 0.006 |
| Antenatal steroids | 110/131 (84.0%) | 635/667 (95.2%) | <0.0001 |
| Vaginal delivery | 45/133 (33.8%) | 207/668 (31.0%) | 0.611 |
| Race (Caucasian) | 81/133 (60.9%) | 375/665 (56.4%) | 0.34 |
| Maternal education (college education) | 60/102 (58.8%) | 254/663 (40.1%) | 0.0004 |
Bolded p values indicate statistically significant differences between consent groups