Table 1 Characteristics of the derivation dataset (n = 14,322).
From: Developing a resiliency model for survival without major morbidity in preterm infants
Survived (n = 12398) | Died (n = 1924) | |
|---|---|---|
Maternal covariates | ||
Maternal age, median (IQR) | 30 (25–35) | 29 (24–34) |
Preeclampsia, n (%) | 3064(24.7%) | 201(10.5%) |
Hypertension, n (%) | 720 (5.8%) | 111 (5.8%) |
Diabetes, n (%) | 2266 (18.3%) | 224 (11.6%) |
BMI, median (IQR) | 26.2 (22.4–31.2) | 26.6 (22.6–31.9) |
Smoking, n (%) | 739 (6.0%) | 135 (7.0%) |
Drug abuse, n (%) | 780(6.3%) | 129 (6.7%) |
Infection during pregnancy, n (%) | 2886 (23.3%) | 389 (20.2%) |
Perinatal covariates | ||
Placental abruption, n (%) | 1975(15.9%) | 350 (18.2%) |
Uterine rupture, n (%) | 37 (0.3%) | 3 (0.2%) |
PROM, n (%) | 3784 (30.5%) | 670 (34.8%) |
Preterm labor, n (%) | 6268 (50.6%) | 994 (51.7%) |
C-section, n (%) | 8077(65.2%) | 879 (45.7%) |
Oligohydramnios, n (%) | 671(5.4%) | 110 (5.7%) |
Polyhydramnios, n (%) | 120 (1.0%) | 50 (2.6%) |
Neonatal factors | ||
Female sex, n (%) | 5760 (46.5%) | 835 (43.4%) |
GA, median (IQR) | 29 (27–31) | 24 (22–25) |
Z-score for BW, median (IQR) | 0.17 (−0.42 to 0.73) | 0 (−0.62 to 0.56) |
