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Table 2 Affymetrix quality metrics for all venipuncture samples.

From: Whole genome transcript profiling from fingerstick blood samples: a comparison and feasibility study

Donor Collection Scale Factor Background % Present GAPDH 3'/5' B-actin 3'/5'
1 venipuncture 3.10 30.3 56.9 2.9 1.9
2 venipuncture 2.82 29.4 56.4 3.0 1.7
3 venipuncture 3.15 29.0 56.2 2.3 1.7
4 venipuncture 2.52 30.1 56.6 3.0 1.8
5 venipuncture 2.63 28.4 54.1 2.8 1.7
Average   2.8 29.5 56.0 2.8 1.8
SD   0.3 0.8 1.1 0.3 0.1