Table 1.

Characteristics of the gene evaluation and test sets

CharacteristicsGene evaluation set (n = 38), %Test set (n = 104), %P*
Gender0.117
    Male6856
    Female3244
Size of tumor0.631
    T158
    T2512
    T36968
    T42112
Nodal status0.912
    N04052
    N16048
Distant metastases0.675
    M06383
    M13717
Localization
    Right§38240.739
    Left6276
    Colon62580.739
    Rectum3842
Grading0.504
    G133
    G24452
    G35345
UICC stage0.196
    I1014
    II2133
    III3236
    IV3717
  • * P values for the comparison of numbers of patients were calculated by means of the χ2 test.

  • For one patient of the test set, tumor localization and information on TNM staging was not available.

  • For one patient of the gene evaluation set, tumor localization was unknown.

  • § Right colon includes cecum through transverse colon.

  • G3 left colon includes descending colon through rectum.

  • G3 includes all cases classified as G3 or as G2-G3.