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Table 2 DNA yield obtained with the Oragene™ DNA Self-Collection Kit in a cohort of subjects born in 1993, city of Pelotas, southern Brazil

From: Quality of DNA extracted from saliva samples collected with the Oragene™ DNA self-collection kit

DNA yield (ng DNA/μL Oragene·DNA/saliva samples)

 

Mean ± SD

Median

Range

p-value a

CV (%)

Spearman correlation (r)

First extraction

36.6 ±23.8

30.0

2.0–160.0

1

65.2

0.84

Second extraction

47.9 ±33.6

38.5

1.0–251.0

 

70.1

 
  1. a one-tailed p-value of difference (paired t-test 1st >2nd extraction).
  2. (N = 822).