Reduction of serum bilirubin levels after endoscopic biliary drainage in patients with extrahepatic biliary obstruction and its significance

Table 5 Multivariate analysis to assess the predictors of 3-month mortality

Variables	Model 1 (> 50% in bilirubin by day 7)		Model 2 (Bilirubin < 3 mg/dL by day 15)
	Odds ratio (95%CI)	P value	Odds ratio (95%CI)	P value
All patients
Age	1.013 (0.967-1.062)	0.582	1.011 (0.964-1.060)	0.654
Benign etiology	0.116 (0.013-1.015)	0.052	0.128 (0.014-1.127)	0.064
No AKI at baseline	0.136 (0.031-0.601)	0.009	0.194 (0.041-0.927)	0.040
Failure to achieve > 50% in bilirubin by day 7	2.075 (0.522-8.254)	0.300	-	-
Failure to achieve bilirubin < 3 mg/dL by day 15	-	-	5.396 (1.370-21.254)	0.016
Malignant etiology
Age	1.024 (0.971-1.079)	0.385	1.017 (0.965-1.072)	0.530
No AKI at baseline	0.103 (0.020-0.541)	0.007	0.154 (0.027-0.886)	0.036
Failure to achieve > 50% in bilirubin by day 7	1.965 (0.457-8.455)	0.364	-	-
Failure to achieve bilirubin < 3 mg/dL by day 15	-	-	6.915 (1.496-31.963)	0.013

CI: Confidence intervals; AKI: Acute kidney injury.