TABLE 4.

Multivariate Logistic Regression Model for POPF

Variable	OR	95% CI	P	VIF
BMI (kg/m2)	1.243	1.00–1.60	0.062	1.50
Preop CT-RT				2.30
No	–	–
Yes	16.122	1.88–179.70	0.024
Biliary decompression				1.80
No	–	–
Yes	12.403	2.25–83.30	0.010
Drain type				3.10
Easy flow	–	–
Salem sump	0.014	0.00–0.16	<0.001
Blood losses (ml)	1.002	1.00–1.01	0.040	1.60

CI indicates confidence interval; CT, chemotherapy; OR, odds ratio; RT, radiotherapy; VIF, variance inflation factor.