TABLE 1.
Demographic characteristics of infants enrolled in the present study.
| Variable | ARDS (n = 55) | Non-ARDS (n = 195) | Statistic | P |
| Gestational age, M (IQR), w | 33.86 (31.29–38.00) | 38.57 (36.43–39.86) | 5.390 | 0.000 |
| Birth weight, M (IQR), g | 2,000 (1,510–2,800) | 2,995 (2,519–3,400) | 5.268 | 0.000 |
| Apgar 1 min, M (IQR) | 8 (7–9) | 9 (8–10) | 2.744 | 0.006 |
| Apgar 5 min, M (IQR) | 9 (8–10) | 10 (9–10) | 4.014 | 0.000 |
| Male,% (n) | 49.1 (27) | 60.5 (118) | 2.298 | 0.130 |
| Age of admission, M (IQR), h | 0.85 (0.08–4.67) | 4.97 (2.11–8.53) | 3.975 | 0.000 |
| Low birth weight,% (n) | 61.8 (34) | 24.1 (47) | 27.862 | 0.000 |
| Prematurity,% (n) | 70.9 (39) | 29.2 (57) | 31.504 | 0.000 |
| Meconium-stained amniotic fluid,% (n) | 16.4 (9) | 19.0 (37) | 0.195 | 0.659 |
| PROM,% (n) | 43.6 (24) | 17.9 (35) | 15.700 | 0.000 |
| Maternal hypertension,% (n) | 5.5 (3) | 4.1 (8) | 0.004 | 0.953 |
| GDM,% (n) | 9.1 (5) | 8.2 (16) | 0.000 | 1.000 |
| Antenatal steroid use,% (n) | 30.9 (17) | 8.2 (16) | 19.300 | 0.000 |
| Cesarean section, n (%) | 50.9 (28) | 46.7 (91) | 0.310 | 0.578 |
| Twins, n (%) | 34.5 (19) | 17.9 (35) | 0.978 | 0.008 |
| ICP, n (%) | 3.6 (2) | 1.5 (3) | 0.190 | 0.663 |
| Total volume within 24 h after birth, (± SD), ml/kg | 84.41 ± 15.18 | 81.39 ± 17.23 | 0.914 | 0.473 |
PROM: premature rupture of membranes >18 h; GDM: gestational diabetes mellitus; ICP: intrahepatic cholestasis of pregnancy; M: median; IQR: interquartile range.