Table 3 Multivariate analysis for risk factors of EV71 viremia

Age <1 year

4.27

1.45 - 12.59

0.008

Sex (Male)

0.98

0.82 - 1.18

0.84

Skin rash

0.70

0.21 - 2.40

0.57

Fever ^a

7.81

0.40 - 152.76

0.18

Oral ulcer

0.34

0.02- 5.48

0.45

Grade 2 to 4 EV71 disease

1.16

0.54 - 2.47

0.70

Day of illness on sampling (day)

0.39^b

0.28 - 0.54

<0.001