From: Identification of body fluids—menstrual blood, saliva, and nasal secretions—over different periods of time, using mRNA
STATH
1st day
3rd day
7th day
Nasal
Mean ± SD
28.05 ± 2.91
25.90 ± 3.53
21.81 ± 3.62
Saliva
36.64 ± 3.33
29.21 ± 4.88
23.08 ± 3.44
pvalue
<0.001**
0.019
0.264