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Table 3 The RPA groups and survival

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

  RPA Group
  Group 1 Group 2 Group 3 Group 4 P value
Overall survival      
3-yrs (%) 91.5 84.1 65.7 45.2 < 0.001
5-yrs (%) 85.6 78.3 54.8 35.1 < 0.001
HR 1.00 1.70 4.12 7.88  
95% CI   1.44-1.99 3.56-4.78 6.71-9.25  
Progression-free survival      
3-yrs (%) 94.2 86.0 69.4 51.7 < 0.001
5-yrs (%) 90.4 81.4 60.6 41.7 < 0.001
HR 1.00 2.25 5.42 9.91  
95% CI   1.85-2.74 4.52-6.51 8.16-12.11  
Cancer-specific survival      
3-yrs (%) 94.5 87.5 70.5 52.1 < 0.001
5-yrs (%) 91.1 83.2 61.9 43.2 < 0.001
HR 1.00 2.13 5.52 10.56  
95% CI   1.74-2.60 4.58-6.66 8.66-12.90  
  1. RPA: recursive partitioning analysis; yrs: years; HR: hazard ratio; CI: confidence interval