Risk prediction of biliary infection after endoscopic drainage for malignant perihilar biliary obstruction: A 10-year multicenter retrospective study

Table 2 Univariate and multivariate logistic regression analyses of the modeling group

Variables	Univariable analysis		Multivariable analysis
	OR (95%CI)	P value	OR (95%CI)	P value
Chemotherapy	0.327 (0.180-6.115)	0.037	0.415 (0.120-1.440)	0.166
Antibiotic prophylaxis	1.255 (0.457-3.448)	0.029	1.041 (0.596-1.820)	0.887
Bismuth-Corlett classification	1.873 (1.258-2.789)	< 0.001	1.412 (1.144-1.743)	0.001
Hypokalemia	2.415 (0.655-8.899)	< 0.001	4.080 (1.958-8.505)	< 0.001
BMI	0.855 (0.151-4.846)	0.025	0.930 (0.863-1.003)	0.059
ANC	2.450 (0.537-11.184)	0.018	1.066 (0.970-1.171)	0.182
NLR	0.997 (0.916-1.086)	0.008	1.007 (0.967-1.048)	0.745
TBIL	1.001 (0.989-1.013)	0.008	1.001 (0.994-1.009)	0.759
DBIL	1.004 (0.986-1.022)	0.006	0.999 (0.998-1.010)	0.888
AST	1.001 (0.994-1.009)	0.005	1.003 (1.000-1.006)	0.021
Serum lipase	0.998 (0.994-1.002)	< 0.001	1.000 (0.999-1.000)	0.226

ANC: Absolute neutrophil count; AST: Aspartate aminotransferase; BMI: Body mass index; CI: Confidence interval; DBIL: Direct bilirubin; NLR: Neutrophil-lymphocyte ratio; OR: Odds ratio; TBIL: Total bilirubin.