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Table 5 Multivariate Cox model analyses of prognostic factors of CRC in operated group

From: The prognostic significance of age in operated and non-operated colorectal cancer

Variable Hazard ratio 95%CI P
Years of diagnosis    <0.001
1996-2000 1.000 Reference  
2001-2005 0.944 0.930-0.959  
Site    <0.001
Colon 1.000 Reference  
Rectum 1.044 1.023-1.066  
Age    <0.001
15-30 1.055 0.955-1.165 0.294
31-40 0.954 0.906-1.005 0.077
41-50 0.979 0.948-1.011 0.203
51-60 1.000 Reference  
61-70 1.082 1.056-1.109 <0.001
71-80 1.325 1.294-1.356 <0.001
>80 1.951 1.902-2.002 <0.001
Pathological grading    <0.001
I- II 1.000 Reference  
III-IV 1.443 1.418-1.468 <0.001
Unknown 0.913 0.880-0.948 <0.001
Histological Type    <0.001
Adenocarcinoma 1.000 Reference  
Mucinous/Signet ring cancer 1.200 1.175-1.226  
AJCC stage    <0.001
I- II 1.000 Reference  
III- IV 4.880 4.791-4.971 <0.001
Unknown 1.170 1.130-1.210 <0.001
No. of LNs dissected    <0.001
<12 1.000 Reference  
≥12 0.793 0.780-0.806 <0.001
Unknown 2.269 2.183-2.358 <0.001