Table 3.

Multivariate logistic regression analysis

	B	P	OR	95%CI
PDA	1.785	0.001	5.958	2.102 ~ 16.882
CB (2 weeks after birth)	0.100	0.024	1.105	1.013 ~ 1.206
first feeding time	0.084	0.187	1.088	0.960 ~ 1.233
half feeding time	0.014	0.275	1.015	0.989 ~ 1.041
full feeding time	-0.026	0.353	0.974	0.922 ~ 1.029
infection within 1 week	0.150	0.796	1.162	0.372 ~ 3.629
CB (1 week after birth)	0.053	0.439	1.055	0.922 ~ 1.207
TB (1 week after birth)	0.007	0.265	1.007	0.995 ~ 1.020

PDA: patent ductus arteriosus; CB: conjugated bilirubin; TB: total bilirubin