Table 3.

Multivariable regression for OS.

	β	HR	se(β)	Z	P
Age	0.014	1.010	0.001	15.150	<0.0001
Sex
Female		Ref
Male	0.082	1.090	0.023	3.540	0.0004
Tumor site
Colon, unknown		Ref
Left colon	31.34	5.05×105	1.79×102	0.073	0.9414
Overlapping lesion	34.22	6.74×105	1.79×102	0.075	0.9401
Right colon	33.83	6.48×105	1.79×102	0.075	0.9403
Transverse colon	33.99	6.58×105	1.79×102	0.075	0.9402
Histological type
Adenocarcinoma		Ref
Not adenocarcinoma	0.160	1.170	0.042	3.810	0.0001
Tumor differentiation grade
II		Ref
IV	0.544	1.720	0.052	10.510	<0.0001
I	-0.408	0.665	0.056	-7.230	<0.0001
III	0.385	1.470	0.027	14.080	<0.0001
T category
T0		Ref
T1	-0.399	0.671	1.000	-0.397	0.6916
T2	-0.925	0.397	1.010	-0.917	0.3589
T3	-0.556	0.573	1.010	-0.554	0.5800
T4	-0.281	0.755	1.010	-0.280	0.7794
TX	-0.383	0.682	1.000	-0.382	0.7026
N category
N0		Ref
N1	0.151	1.160	0.033	4.618	<0.0001
N2	0.455	1.580	0.037	12.460	<0.0001
NX	0.166	1.180	0.051	3.281	0.0010
Bone metastasis
No		Ref
Yes	0.362	1.440	0.056	6.426	<0.0001
Brain metastasis
No		Ref
Yes	0.432	1.540	0.125	3.460	<0.0001
Lung metastasis
No		Ref
Yes	0.278	1.320	0.030	9.285	<0.0001
Tumor deposit
No		Ref
Unknown	0.197	1.220	0.032	6.250	<0.0001
Yes	0.112	1.120	0.038	2.943	0.0032
Tumor size
0-1cm		Ref
1-5cm	0.296	1.340	0.231	1.281	0.2003
unknown	-0.082	0.921	0.037	-2.255	0.0241
Surgery
No		Ref
Yes	-0.806	0.447	0.049	-16.462	<0.0001
Chemotherapy
No		Ref
Yes	-1.086	0.338	0.026	-42.532	<0.0001

OS, overall survival; HR, hazard ratio; CI, confidence interval.