BMI | < 18.5 (22) | ≥18.5–25 (379) | ≥25–30 (113) | ≥30–35 (45) | ≥35 (31) | p-value |
---|---|---|---|---|---|---|
Maternal age (y, mean) | 24.5 | 27.9 | 28.6 | 28.8 | 28.9 | 0.007 |
Diabetes (GDM or DM) (%) | 0 | 7.1 | 18.6 | 24.4 | 51.6 | < 0.001 |
Chronic disease (%) | 27.3 | 27.4 | 27.4 | 35.6 | 41.9 | 0.396 |
Thyroid disorder (%) | 0 | 4 | 7.1 | 2.2 | 16.1 | 0.039 |
Gestational age (d, median) | 281 | 283 | 285 | 289 | 286 | a |
Infertility treatment % | 5 | 8.1 | 12.8 | 9.3 | 14.3 | 0.264 |
Admission dilatation (mean, cm) | 2.8 | 2.2 | 1.9 | 1.8 | 1.4 | 0.007 |
Head position in birth canal at admission (mean, cm) | −1.9 | −2.2 | −2.6 | −2.6 | −2.8 | < 0.001 |
Spontaneous contractions (%) | 77.3 | 56.4 | 38.1 | 33.3 | 32.3 | < 0.001 |
Induction of labor (%) | 9.1 | 17.4 | 29.2 | 31.1 | 45.2 | < 0.001 |
Duration of labor in VD excl. CS (h:min, median) | 8:50 | 10:20 | 10:31 | 10:39 | 14:35 | 0.51 |
Oxytocin during labor (%) | 68.2 | 81.5 | 89.4 | 93.3 | 87.1 | 0.024 |
Chorionamnionitis (%) | 4.5 | 15.3 | 19.5 | 20.0 | 35.5 | 0.002 |
Fetal malposition (%) | 13.6 | 23.8 | 31.9 | 28.9 | 38.7 | 0.113b |
Use of IUPC (%) | 18.2 | 29.1 | 42.5 | 57.8 | 61.3 | < 0.001 |
PROM (%) | 13.6 | 27.2 | 30.0 | 29.5 | 41.9 | 0.23c |
Time between ROM and delivery (h:min) | 4:05 | 8:02 | 8:50 | 8:47 | 11:40 | d |
CTG pathology | 9.1 | 23.0 | 24.8 | 22.2 | 22.6 | 0.878 |
Birth weight (g, mean) | 3245 | 3518 | 3667 | 3816 | 3718 | < 0.001 |
LGA > 4500 g (%) | 0 | 2.1 | 2.7 | 11.1 | 3.2 | |
SGA < 2500 g (%) | 4.5 | 1.1 | 0 | 0 | 0 | |
5 min Apgar | 8.86 | 8.85 | 8.90 | 8.93 | 8.39 | 0.307 |
Umb. artery pH | 7.28 | 7.28 | 7.30 | 7.31 | 7.28 | NS |