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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