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Table 1 Demographic characteristics and DNA yields per specimen, corresponding to 2910 DNAs included in this study

From: Saliva DNA quality and genotyping efficiency in a predominantly elderly population

  Blood (8 ml max) Saliva (2 ml max) P-value
No. samples 566 2344  
Age ± SD years 65 ± 12 65 ± 12 0.95
Female (%) 67.8 67.4 0.88
Mean ± SD for total DNA yield per specimen (μg) 106 ± 68 35 ± 36 P < 0.0001
Mean ± SD for DNA yield per ml of requested specimen (μg/ml) 13.2 ± 8.5 17.6 ± 17.8 P < 0.0001
  1. Specimen collection volume was up to 8 ml for blood and up to 2 ml for saliva