Table 1 Prognostic analysis of clinicopathological factors for overall survival in poor differentiated colorectal cancer patients

Age

0.330

 <65 years

43(61.4%)

0.510 ± 0.077

 ≥65 years

27(38.6%)

0.407 ± 0.095

Gender

0.582

 Male

36(51.4%)

0.408 ± 0.083

 Female

34(48.6%)

0.529 ± 0.086

Tumor location

0.092

 Colon

45(64.3%)

0.503 ± 0.083

 Rectum

25(35.7%)

0.315 ± 0.094

T stage

0.373

 T1 + T2

5(7.1%)

0.600 ± 0.219

 T3 + T4

65(92.9%)

0.459 ± 0.062

N stage

<0.001*

<0.001*

3.028

 N0

19(27.1%)

0.895 ± 0.070

 N1 + N2

51(72.9%)

0.310 ± 0.065

TNM stage

<0.001*

0.384

 I

2(2.9%)

NA^a

 II

17(24.3%)

0.882 ± 0.078

 III

51(72.8%)

0.310 ± 0.065

NED

0.003*

0.111

 +

36(51.4%)

0.272 ± 0.075

 -

34(48.6%)

0.674 ± 0.081