Table 1 Age-specific prevalence (%) of EV71-specific neutralizing antibody (with 95% confidence intervals) by gender and ethnic group

All

14.3

(11.2--18.0)

27.8

(23.6--32.3)

38.8

(34.1--43.6)

26.9

(24.5--29.5)

Gender

Male

13.8

(9.8--19.1)

27.0

(21.6--33.1)

38.0

(29.9--46.9)

24.4

(21.0--28.2)

Female

14.7

(10.4--20.5)

28.7

(22.5--35.9)

39.1

(33.5--44.9)

29.1

(25.7--32.7)

Ethnic group

Chinese

14.7

(11.0--19.3)

22.6

(17.9--28.1)

36.3

(30.7--42.3)

24.3

(21.5--27.5)

Malay

16.1

(9.8--25.2)

40.6

(31.7--50.1)

45.8

(36.2--55.8)

34.9

(29.7--40.6)

Indian

7.5

(2.6--19.9)

27.0

(15.4--43.0)

37.8

(25.1--52.4)

24.6

(17.8--32.9)