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

Table 3 Multivariate analysis of the predictors of > 50% reduction in total bilirubin by day 7 and total bilirubin < 3 mg/dL by day 15

Variables	> 50% in bilirubin by day 7		Bilirubin < 3 mg/dL by day 15
	Odds ratio (95%CI)	P value	Odds ratio (95%CI)	P value
Age	0.952 (0.910-0.995)	0.03	0.989 (0.939-1.043)	0.689
Female gender	0.723 (0.236-2.215)	0.571	0.622 (0.145-2.664)	0.522
No cholangitis at baseline	0.639 (0.210-2.029)	0.447	4.944 (0.857-28.524)	0.074
Benign etiology	4.303 (1.085-17.059)	0.038	1.226 (0.239-6.303)	0.807
Baseline total bilirubin	0.935 (0.849-1.030)	0.175	0.79 (0.72-0.89)	< 0.001
ALP	1.002 (1.000-1.004)	0.066	1.002 (1.000-1.003)	0.043

CI: Confidence intervals; ALP: Alkaline phosphatase.