TABLE 2.

The basic maternal characteristics between BPD and control groups.

	BPD group (n = 18)	Control group (n = 20)	P-value
Maternal age (years) $\overline{\text{X}}\pm \text{S}$	33.7 ± 6.8	34.0 ± 4.9	0.056
Cesarean section n (%)	14 (77.8%)	17 (85%)	0.142
Antenatal steroids n (%)	12 (66.7%)	13 (65%)	0.132
Premature rupture of membranes (PROM) n (%)	6 (33%)	11 (55%)	0.180
Maternal antibiotic treatment n (%)	6 (33%)	5 (25%)	0.572

N represents the number of patients.