. Author manuscript; available in PMC: 2010 Oct 28.

Published in final edited form as: Hepatology. 2002 Feb;35(2):380–384. doi: 10.1053/jhep.2002.30695

Table 1.

Multivariate Model of Colectomy due to Intractable Disease

Variable	B	Hazard Ratio = Exp(B)	P Value for Wald Statistic
Age at the time of diagnosis of IBD (1 if older than 30 years, 0 otherwise)	0.409	1.505	.228
OLT (segmented time-dependent covariate)	1.141	3.129	.001