Table 5.

Data of mortality, surgical ligation and morbidities in infants who were conservatively managed or medically treated infants (<7 days and ≥7 days).

	Conservative	Medical treatment		p
	(n = 130)	(n = 414)
		<7 days	≥7 days
		(N = 363)	(N = 51)
Discharged with open PDA, n (%)	25 (19)	72 (20)	8 (16)	0.78
PDA ligation, n (%)	8 (6)	24 (7)	5 (10)	0.66
LOS, n (%)	71 (55)	188 (52)	28 (55)	0.81
IVH (≥Gr 3), n (%)	5 (3.8)	13 (3.6)	2 (3.9)	0.32
NEC, n (%)	28 (21)	91 (25)	16 (31)	0.38
Moderate-severe BPD¥, n (%)	25 (47)	80 (48)	13 (54)	0.83
Treated ROP‡, n (%)	14 (13)	56 (22)	7 (16)	0.12
Mortality, n (%)	29 (22)	131 (36)	13 (25)	0.009
BPD/death, n (%)	51 (39)	201 (55)	25 (49)	0.007

BPD, bronchopulmonary dysplasia; IVH, intraventricular hemorrhage; LOS, late-onset sepsis; NEC, necrotizing enterocolitis; PDA, patent ductus arteriosus; ROP, retinopathy of prematurity.

^‡Infants had at least one eye examination for ROP.

^¥Infants survived at PMA 36 weeks' gestation.