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Table 3 Univariate survival analyses of CRC patients in operated group according to various clinicopathological variables

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

Variable n 5-year CCSS (%) Log rankχ2test P
Years of diagnosis    65.374 <0.001
1996-2000 75517 67.5%   
2001-2005 127231 69.5%   
Sex    2.520 0.112
Male 103083 69.0%   
Female 99665 68.5%   
Site    122.381 <0.001
Colon 127618 68.2%   
Rectum 35530 71.6%   
Age    1112.554 <0.001
15-30 1073 62.1%   
31-40 4874 69.6%   
41-50 17025 70.7%   
51-60 35729 72.3%   
61-70 48909 71.8%   
71-80 58248 68.6%   
>80 36890 60.1%   
Race    0.036 0.850
Caucasian 166019 69.2%   
African American 20149 61.6%   
Others* 16580 72.4%   
Pathological grading    812.382 <0.001
I- II 150521 72.0%   
III-IV 38018 52.7%   
Unknown 14209 77.2%   
Histological Type    1162.165 <0.001
Adenocarcinoma 177748 70.0%   
Mucinous/Signet ring cancer 25000 59.7%   
AJCC stage    16776.287 <0.001
I 37364 92.6%   
II 59213 81.5%   
III 54234 61.3%   
IV 27707 12.6%   
Unknown 24230 81.8%   
No. of LNs dissected    337.494 <0.001
<12 116783 69.6%   
≥12 80248 69.0%   
Unknown 5717 47.7%   
  1. *Including other (American Indian/AK Native, Asian/Pacific Islander) and unknowns.