Table 3. Cox regression analyses of overall survival in colon adenocarcinoma patients.

Variable	Univariate analysis	P-value	Multivariate analysis	P-value
	HR (95% CI)		HR (95% CI)
Age	1.011 (0.990–1.033)	0.296	1.008 (0.981–1.035)	0.572
BMI	0.943 (0.886–1.005)	0.070	0.933 (0.870–1.002)	0.056
Gender
Male vs. female	1.471 (0.846–2.560)	0.172	0.918 (0.439–1.922)	0.821
N status
N1 vs. N0	1.711 (0.883–3.317)	0.112	0.317 (0.033–3.078)	0.322
N2 vs. N0	3.430 (1.815–6.481)	<0.001	1.200 (0.127–11.364)	0.874
Cancer stage
II vs. I	6.078 (0.807–45.787)	0.080	13156.010 (0.000-Inf)	0.888
III vs. I	10.318 (1.372–77.596)	0.023	36880.177 (0.000-Inf)	0.876
IV vs. I	25.016 (3.248–192.678)	0.002	108029.274 (0.000-Inf)	0.863
Subtype
Mucinous adenocarcinoma vs. adenocarcinoma	1.388 (0.694–2.775)	0.354	1.927 (0.799–4.645)	0.144
COL1A2	1.585 (1.297–1.937)	<0.001	1.298 (1.006–1.674)	0.045

Abbreviations: HR: hazard ratio; 95% CI: 95% confidence interval; BMI: body mass index; N status: nodal metastasis status.