Table 1.

Comparison of patient characteristics between patent ductus arteriosus and ductus arteriosus closure groups.

Group	N	Age (days)	Gestational age (weeks)	Weight (kg)	AO/LA	EF (%)	Hospital stay length (days)	LUS
Patent ductus arteriosus	127	4.13±1.12	30.90±3.56	1.56±0.63	0.83±0.12	63.38±5.88	33.09±23.20	8.88±3.56
Ductus arteriosus closure	94	4.50±1.26	30.33±2.81	1.43±0.48	0.88±0.14	64.31±5.95	35.71±19.66	6.75±3.66
t		0.776	13.094	15.819	0.085	0.012	4.784	0.005
P		0.444	0.199	0.087	0.001	0.249	0.377	0.000