Table III.

Univariate and multivariate analysis of factors that affect survival in patients with colorectal cancer.

	Univariate			Multivariate
	Hazard ratio	95% CI	P-value	Hazard ratio	95% CI	P-value
Age, 1-year increment	1.03	1.02–1.05	<0.0001	1.05	1.03–1.06	<0.0001
Gender (male)	1.04	0.76–1.42	0.8000	-	-	-
Urgent operation (Yes)	2.84	0.70–11.5	0.1400	-	-	-
Laparoscopic operation (Yes)	0.40	0.10–1.62	0.2000	-	-	-
Tumor location (rectum)	1.42	1.04–1.92	0.0300	1.51	1.04–2.00	0.0100
Infectious complications (Yes)	1.58	0.88–2.85	0.1300	-	-	-
Curability (A)	0.21	0.14–0.32	0.0010	0.50	0.31–1.29	0.0600
Stage (compared with Stage I)
II	2.92	1.41–6.06	0.0040	2.65	1.27–5.52	0.0100
III	8.08	4.09–16.0	<0.0001	7.78	3.92–15.4	<0.0001
IV	20.20	9.19–44.4	<0.0001	12.5	4.41–35.4	<0.0001

CI, confidence interval.