Table 5.

Multivariate Logistic Regression Analysis of Risk Factors for Colorectal Stricture Formation in UC

Variable	Univariate			Multivariate
	OR (95% CI)	p-value		OR (95% CI)	p-value
Disease duration (≥5 yr)	3.664 (1.366–9.829)	0.010		3.221 (1.168–8.881)	0.024
Moderate anemia	3.431 (1.566–7.518)	0.002		3.373 (1.472–7.731)	0.004
PSC	6.687 (1.876–25.131)	0.004		5.842 (1.395–24.468)	0.016
Extraintestinal manifestation	2.994 (1.194–7.506)	0.019		1.765 (0.637–4.888)	0.274
Multiple recurrence	1.076 (0.678–1.706)	0.756		-	-

UC, ulcerative colitis; OR, odds ratio; CI, confidence interval; PSC, primary sclerosing cholangitis.