Table 5

Cox regression analysis of prognostic factors in 268 patients with colorectal cancer

Variables	HR	95% CI	p Value
Variables	Multivariate analysis
Age (years)
≥60/≤59	1.38	0.66 to 2.90	0.39
Sex
Male/female	1.13	0.59 to 2.15	0.72
ASA-PS
3, 4/1, 2	2.40	0.75 to 7.63	0.139
PNI
<50/≥50	2.26	1.17 to 4.39	0.016
Serum CEA level (ng/mL)
≥5.0/<5.0	0.83	0.41 to 1.69	0.61
Stage
III, IV/0, I, II	1.59	0.69 to 3.71	0.28
Residual disease
Positive/negative	8.93	4.03 to 20.00	<0.001
Symptom
Present/absent	1.89	0.85 to 4.20	0.117

ASA-PS, American Society of Anesthesiologists-physical status; CEA, carcinoembryonic antigen; PNI, prognostic nutritional index.