Skip to main content

Table 1 Distribution of the study population on the basis of nodal positivity and tumor stage.

From: The use of genetic programming in the analysis of quantitative gene expression profiles for identification of nodal status in bladder cancer

Tumor Stage Training Set    Validation Set   
  Node positive Node negative Total Node positive Node negative Total
Normal controls   3 3   2 2
pTa 0 3 3 0 7 7
pT1 2 6 8 1 4 5
pT2 0 4 4 0 4 4
pT3 7 5 12 7 3 10
pT4 2 2 4 2 1 3
Grand total 11 23 34 10 21 31
  1. The total cohort of 65 subjects included five normal controls that were classified as node negative. An approximately equal distribution of the subjects was attempted between both sets in all tumor stages and nodal classes to eliminate bias. Tumor and nodal stages was determined according to the American Joint Committee on Cancer recommended TNM system for urinary bladder cancer (2002).