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Table 3 Microarray quality control parameters.

From: Sex genes for genomic analysis in human brain: internal controls for comparison of probe level data extraction.

   RawQ Scale Factor Background % Present calls Actin 3'/5' ratio GAPDH 3'/5' ratio
BA9 Mean ± SEM 3.12 ± 0.13 1.12 ± 0.05 40.76 ± 3.41 52.4 ± 0.5 1.14 ± 0.03 0.96 ± 0.02
  Max 4.97 2.14 94.17 57.1 1.91 1.28
  min 1.95 0.71 16.04 45.4 0.87 0.83
BA47 Mean ± SEM 2.82 ± 0.11 1.21 ± 0.07 34.95 ± 2.69 53.5 ± 0.6 1.45 ± 0.09 1.10 ± 0.04
  Max 4.49 2.32 81.07 58.7 3.26 1.61
  min 1.76 0.57 13.65 44.9 0.95 0.82
  1. Quality control parameters for brain samples microarrays from Brodman Area 9 (BA9, 39 arrays) and 47 (BA47, 36 arrays). Values were derived from MAS5.0 array analysis.