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. 2015 Feb 25;23(11):1523–1530. doi: 10.1038/ejhg.2015.6

Table 2. t-Test of variant frequencies for three suspected low-level mosaic RB cases against background noises from runs of three healthy controls.

RB1 variants (ID of patient) Blood % of RB cases (CI 95%) Blood % of healthy controls (CI 95%) t-Test
  1 2 3 1 2 3  
c.1215+1G>A (390) 8.6 (7.6–9.7) 8.5 (7.8–9.2) 9.4 (8.8–10.0) 0.1 (0.0–0.2) 0.1 (0.0–0.3) 0.0 (–) P<0.0001
c.596T>G (973/2013) 24.4 (22.1–26.7) 23.3 (21.4–25.2) 25.4 (22.8–28.0) 0.7 (0.3–1.1) 0.5 (0.2–0.8) 0.7 (0.3–1.1) P<0.0001
c.1735C>T (39/2013) 24.7 (22.4–27.0) 27.4 (25.1–29.7) 26.5 (24.3–28.7) 0.1 (0.0–0.2) 0.1 (0.0–0.2) 0.2 (0.0–0.4) P<0.0001

Abbreviation: CI, confidence interval. Variant frequencies, expressed in percentages, represent the weighted mean values calculated on the number of forward and reverse reads for each sample.