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Table 2 The average standard deviation for different CT value ranges and the percentage of genes in each group (percent frequency)

From: Cross-platform comparison of SYBR® Green real-time PCR with TaqMan PCR, microarrays and other gene expression measurement technologies evaluated in the MicroArray Quality Control (MAQC) study

CT Values

Ave SD

Frequency (%)

10–25

0.11

45

25–30

0.19

41

30–35

0.40

11

≥ 35

0.96

3

Not Detectable

0

0

  1. A total of 184 average CT measurements were obtained from Sample A and Sample B. Each average CT value and its standard deviation were calculated from the result of 6 replicate assays.