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Colon and Rectal Cancer -TNM

Survival by TNM system (AJC 5th ed.,) is more detailed and potentially more precise than SEER. The data below is from the large NCDB (National Cancer Data Base) as published for colon (Cancer 1996;78:918) and rectum (Cancer 1998;83:2408). The observed survival graphs are noted for colon and rectum (note that the survival rates are similar.)

The stage distribution and relative 5 year survival is noted below.

 
Rectal Cancer
Stage Distribution Survival
I 33.9% 71.5%
II 24.8% 52.4%
III 25.9% 36.9%
IV 15.4% 3.6%
Colon Cancer
Stage Distribution Survival
I 25.1% 70%
II 30.3% 60%
III 25.2% 44%
IV 19.4% 7%

 

5 Year Survival Colon Cancer 6th Ed TNM Stage
Stage Survival Stage Survival
I 93% IIIa 83%
IIa 84% IIIb 64%
IIb 72% IIIc 44%
    IV 8%

Observed Survival - National Statistics