Table 2

Mean DNA yield (μg) from mouthwash samples

nMeanSDPa
All23847.7±40.5
Sex<0.02
 Male12153.4±49.8
 Female11742.7±26.9
Race0.02
 Japanese8938.2±27.9
 Caucasian8054.5±48.3
 Hawaiians6951.9±42.6
Sample pairs1070.01
 Sample 142.7±41.3
 Sample 233.8±32.2
Sample pairsb400.81
 Sample 154.3±59.7
 Sample 252.6±41.8
  • a P for differences between means.

  • b Samples from the same subjects extracted in the same batch.