Table 4.

The multivariate analysis of clinicopathological variables for overall survival in CRC patients

Clinicopathological variables	Relative risk (95 % CI)	P-value
Age (≥50)	0.980 (0.70 - 1.12)	0.352
Sex	1.26 (0.81 - 1.78)	0.237
Tumor size (>5 cm)	2.11 (1.01 - 3.97)	0.010
Stage ( III & IV)	1.59 (0.73 - 2.89)	0.013
Differentiation (low)	1.51 (1.03 - 2.44)	0.094
PTEN expression	2.23 (1.06 - 4.68)	0.008

CI Confidence Interval