UICC

N (%)

Median survival in months (range)

Logrank test (p value)

Cox regression analysis (p value)

1year survival (%)

3year survival (%)

5year survival (%)


6th edition
  
0.005

0.053
   
I

43 (43.9%)

47.30 (0.30–149.29)
  
88.4

46.5

23.3

II

8 (8.2%)

18.85 (0.32–97.05)
  
75.0

12.5

12.5

III

45 (45.9%)

19.90 (0.16–150.11)
  
64.4

28.9

8.9

IV

2 (2.0%)

15.30 (2.70–27.89)
  
50.0

0.0

0.0

7th edition
  
0.006

0.082
   
I

41 (41.8%)

54.90 (0.30–149.29)
  
87.8

48.8

24.4

II

26 (26.5%)

19.90 (0.23–97.10)
  
61.5

19.2

11.5

III

3 (3.1%)

17.20 (5.30–43.20)
  
66.7

33.3

0.0

IV

28 (28.6%)

23.15 (2.70–150.10)
  
71.4

28.6

7.1

 Survival was calculated using the Kaplan–Meier method and compared using the logrank test. Cox proportional hazards regression analysis was performed to evaluate the prognostic value of the UICC stage according to the sixth and seventh editions