Table 3.

Hazard regression analysis of factors associated with overall survival

			Survival Analysis
Variables	Median Survival (Months)	P value	Hazard Ratio	95% CI	P value
Age	-	-	1.06	1.02–1.09	<0.001
Race
Caucasian	108.1		Ref	-
Black	86.52	0.27	1.32	0.70–2.51	0.39
Other	Not Reached	0.68	0.94	0.18–4.89	0.94
Tumor Location
Right Colon	94.64
Transverse Colon	121.63	0.17
Descending Colon	99.28	0.60
Rectosigmoid Colon	120.35	0.52
Total Nodes Examined
<12	67.65
>12	108.09	0.001	0.62	0.30–1.26	0.18
Margin Status
R0	108.09		Ref	-
R1	67.65	0.18	0.52	0.09–2.98	0.46
Stage
IIA	121.63		Ref	-
IIB	76.96	<0.001	2.42	1.17–5.03	0.02
IIC	42.63		3.84	1.03–14.35	0.04
Lymphovascular Invasion (LVI)
No LVI	67.36		Ref	-
LVI	Not Reached	0.67	0.75	0.34–1.63	0.47
Perineural Invasion (PNI)
No PNI	70.68
PNI	36.98	0.008	1.72	0.57–5.17	0.34
Microsatellite Stability (MSS)
MSS	67.36		Ref	-
Microsatellite Instability	Not Reached	0.81	1.18	0.55–2.52	0.67
Perioperative Therapy
No Chemotherapy	90.73		Ref	-
Chemotherapy	Not Reached	<0.001	0.74	0.27–2.06	0.57