Table 2.

Characterization of enrolled subjects.

Variable	Patients (n = 63)	Control (n = 86)	P -value
Gestational age (weeks)	27.2 ± 2.7	30.6 ± 2.0	<0.001
Birth weight (g)	1001.8 ± 393.2	1526.7 ± 391.7	<0.001
1 min Apgar score	4 [0–9]	6 [3–9]	<0.001
5 min Apgar score	6 [2–8]	7 [5–10]	<0.001
Male gender	34 (54.0%)	44 (51.2%)	0.8628
Preterm rupture of membranes	13 (20.6%)	19 (22.1%)	0.9902
Antenatal steroids	36 (57.1%)	37 (43.0%)	0.1012

Gestational age and birth weight are displayed as mean ± SD; Apgar score is shown as median and the interval; and other variables are shown as number of subjects and percentage.