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Table 3 Percentage of overlapping genes (POG) determined by three gene selection methods. For each gene selection method, different percentages of genes (P) are selected from each platform.

From: Cross-platform comparability of microarray technology: Intra-platform consistency and appropriate data analysis procedures are essential

Percentage (P, %) 2009-gene Dataset 537-gene Dataset POG by chance
  Number of genes p-value Fold SAM Number of genes p-value Fold SAM  
3.68 74 4.0 12.2 17.6 20 0 35.0 25.0 0.034
4.98 100 6.0 14.0 20.0 27 0 34.6 34.6 0.062
7.02 141 8.6 16.4 18.6 38 8.6 36.8 31.6 0.12
9.31 187 9.1 16.7 18.8 50 10.0 36.0 34.0 0.22
9.96 200 10.0 17.0 19.0 54 9.2 35.2 33.3 0.25
14.98 301 13.2 18.9 23.2 81 16.2 41.2 33.7 0.56
18.62 374 14.4 21.9 24.1 100 19.0 39.0 34.0 0.87
19.91 400 15.2 22.5 24.7 107 24.5 36.8 35.8 0.99
30.01 603 23.6 30.6 31.4 161 27.8 45.1 43.2 2.25
37.18 747 29.4 34.0 35.2 200 34.0 51.0 48.0 3.46
39.82 800 30.7 35.1 36.6 214 36.9 52.3 50.5 3.96
55.90 1123 38.3 40.3 41.2 300 52.3 56.3 58.7 7.81
59.73 1200 39.8 41.2 41.5 321 57.2 59.4 60.6 8.92
74.51 1497 43.5 45.2 45.1 400 63.5 65.7 67.2 13.88
79.64 1600 45.4 45.6 45.7 427 66.6 67.0 65.9 15.86
100.00 2009 51.9 52.0 52.2 537 70.7 72.4 72.8 25.00