Table 1
Age
Risk factors %
Chronic pulmonar disease
Chronic cardiovascular disease
Mellitus diabetes
Viruses
Group 1
39.8
48
23
8
8
H1N1 100%
Group 2
72.3
86
37
54
34
H3N2 77%
p
<0.05
<0.05
NS
<0.05
<0.05