. Author manuscript; available in PMC: 2014 Mar 1.

Published in final edited form as: Liver Transpl. 2013 Mar;19(3):259–267. doi: 10.1002/lt.23595

Table 3.

Models of rates of biliary complication procedures per month

Parameter^*	Estimate	Risk Ratio	p-value
Rates within the first two years post-transplant
Time Since Transplant (per month)	−0.28	0.76	<.0001
Time Since Transplant (per month²)	0.01	1.01	<.0001
LDLT (ref. = DDLT)	0.19	1.21	0.147
Initial Biliary Complication = Stricture or Stricture + Leak (ref. = Leak only)	0.26	1.30	0.045
Recipient Age (per 10 year increase)	0.13	1.14	0.045
Recipient BMI (per unit increase)	0.02	1.02	0.013
Recipient Diagnosis of HCV	0.28	1.33	0.025
Rates beyond two years post-transplant
Time Since Transplant (per month)	−0.02	0.98	0.024
LDLT (ref. = DDLT)	1.05	2.85	0.064
Initial Biliary Complication = Stricture or Stricture + Leak (ref. = Leak only)	1.07	2.90	0.019
At least 1 Roux Type Biliary Anastamosis (ref. = no Roux type)	1.09	2.97	0.015

Following variables were tested in the models, but were not statistically significant: recipient sex, race, MELD, medical condition at transplant, encephalopathy, ascites, donor age, and number of arterial anastomoses.