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Table 3 Characteristics of the validation cohorts

From: A target based approach identifies genomic predictors of breast cancer patient response to chemotherapy

Characteristic GSE21094 GSE25055 GSE25065 GSE22513
  # % # % # % # %
# patients 278   310   198   14  
Age, years        NA  
<=50 133 48 168 54 109 55   
>50 144 52 142 46 89 45   
NA 1 0       
Mean 52   50   49    
STD 11   10   11    
Nodal status NA       NA  
Positive    223 72 128 65   
Negative    87 28 71 35   
NA         
Grade NA       NA  
1    19 6 13 7   
2    117 38 63 32   
3    151 49 108 55   
NA    23 7 14 7   
Response         
pCR 56 20 58 19 42 21 4 29
RD 222 80 248 80 140 71 10 71
NA    4 1 16 8   
ER status        NA  
Positive 164 49 131 42 123 62   
Negative 114 41 174 56 74 37   
NA    5 2 1 1   
  1. Abbreviations: STD: Standard deviation; pCR: complete pathological response; RD: Residual disease. ER: Estrogen receptor; NA: Not available.