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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).