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Table 1 Demographic and treatment of colorectal adenocarcinoma patients

From: Risk groups defined by Recursive Partitioning Analysis of patients with colorectal adenocarcinoma treated with colorectal resection

  N Cumulative survival (%) not died of cancer at 5-years HR 95.0% CI Significance*
Gender      0.000
   male 5,937 69% 1.00   
   female 4,557 73% 0.86 0.80-0.93  
AGE      0.000
   > 50 yrs, < = 60 yrs 1,994 76% 1.00   
   < 50 yrs 1,516 75% 1.19 1.03-1.38  
   > 60 yrs, < = 70 yrs 2,811 73% 1.14 1.01-1.30  
   > 70 yrs 4,173 64% 1.64 1.46-1.84  
Co-morbidity (CCI)      0.000
   CCI = 0+1 952 87% 1.00   
   CCI = 2 4,033 78% 1.51 1.24-1.85  
   CCI > = 3 5,509 62% 1.92 1.58-2.33  
Tumor location      0.000
   rectum 3,967 70% 1.00   
   sigmoid colon 3,115 72% 0.84 0.77-0.93  
   colon (except sigmoid colon) 3,230 70% 1.02 0.93-1.13  
   overlapping or unspecified 182 61% 1.17 0.90-1.53  
Number of lymph node examined      0.013
   < 12 3,850 70% 1.00   
   > = 12 6,644 72% 0.91 0.84-0.98  
Surgical margin      0.000
   < = 2 mm 657 57% 1.00   
   > 2 mm, < = 1 cm 3,382 69% 0.57 0.49-0.66  
   > 1 cm 5,816 75% 0.47 0.41-0.54  
Depth of tumor invasion      0.000
   submucosa 958 89% 1.00   
   muscularis propria 1,613 82% 1.26 0.73-2.18  
   through the muscularis propria into the subserosa 6,315 68% 1.77 1.06-2.95  
   directly invades other organs or structures 1,608 58% 2.76 1.62-4.70  
Tumor size      0.001
   0-2 cm 625 79% 1.00   
   > 2.0, < = 3 cm 1,323 75% 0.82 0.66-1.02  
   > 3.0, < = 4 cm 2,067 72% 0.81 0.66-1.00  
   > 4.0, < = 6 cm 3,889 69% 0.82 0.67-1.01  
   > 6.0 cm 2,590 66% 0.98 0.80-1.21  
Pathology      
   adenocarcinoma 10,016 71.6% 1.00   0.000
   mucinous or signet ring cell adenocarcinoma 478 62.9% 1.50 1.27-1.76  
TNM stage      0.000
   stage I 2,114 88% 1.00   
   stage II 4,002 76% 1.23 0.96-1.58  
   stage III 4,378 56% 3.05 2.39-3.89  
Radiotherapy      0.004
   no 9,367 71% 1.00   
   yes 1,127 67% 1.21 1.07-1.38  
Chemotherapy      0.000
   no 5,385 68% 1.00   
   yes 5,109 73% 0.67 0.62-0.73  
  1. N: number; HR: hazard ratio; CI: confidence interval; CCI: Charlson comorbidity index; classification of TNM stage based on AJCC edition 6; *: log-rank P value