Table 1 Breast cancer gene expression data sets used in the prognostic meta-analysis. Bad outcome (Y = 1) is defined as recurrence during follow-up, and good outcome (Y = 0) is defined as remaining recurrence-free for at least three years.
Authors | Array platform | Number of array elements | Sample size (n) | Good outcome (n0) | Bad outcome (n1) |
|---|---|---|---|---|---|
Sorlie et al. | Spotted cDNA | 8102 | 58 | 23 | 35 |
van't Veer et al. | Inkjet oligonucleotide | 25000 | 78 | 44 | 34 |
Sotiriou et al. | Spotted cDNA | 7650 | 98 | 53 | 45 |
Huang et al. | Affymetrix chip | 12625 | 71 | 36 | 35 |