Table 4 Mean CVs for all targets passing presence / absence filter in analysis of U133A and U133B arrays
From: Computational method for reducing variance with Affymetrix microarrays
Mean CV with signal method (%) | Mean CV with ratio method (%) | Reduction in mean CV with ratio method (%) | |
|---|---|---|---|
U133A, initial scan, 9276 targets | |||
8 samples from young men | 26.5 | 21.2 | 20 |
8 samples from old men | 26.5 | 19.2 | 28 |
U133A, antibody-enhanced scan, 10665 targets | |||
8 samples from young men | 25.8 | 20.2 | 22 |
8 samples from old men | 23.5 | 18.4 | 22 |
U133B, initial scan, 5766 targets | |||
8 samples from young men | 29.8 | 23.9 | 20 |
8 samples from old men | 27.5 | 22.1 | 20 |
U133B, antibody-enhanced scan, 7571 targets | |||
8 samples from young men | 28.1 | 22.2 | 21 |
8 samples from old men | 26.1 | 20.4 | 22 |