From: Perceptions and behaviors related to hand hygiene for the prevention of H1N1 influenza transmission among Korean university students during the peak pandemic period
Daily hand washing frequency
Males
Females
Flu-like symptoms*
ORâ€
95%CI
Flu-like symptoms
#4
25.6%
1
-
42.5%
5-7
21.2%
0.78
0.50-1.23
48.0%
1.30
0.68-2.48
#8
12.4%
0.45
0.23-0.90
33.3%
0.64
0.28-1.48