Table 3

Seropositivity in different age groups among school children in September 2009

Age group (years)

No. sampled

HI titre ≥1:10

HI titre ≥1:40


No.

% (95% CI)

No.

% (95% CI)


< 5

149

12

8.1 (3.7-12.4)

11

7.4 (3.2-11.6)

5-9

821

203

24.7 (21.8-27.7)

164

20.0 (17.2-22.7)

10-14

1306

446

34.2 (31.6-36.7)

350

26.7 (24.3-29.2)

15-19

251

139

55.4 (49.2-61.5)

106

42.2 (36.1-48.3)

Total

2527

800

31.7 (29.8-33.5)

631

25.0 (23.3-26.7)


CI = confidence interval, HI = haemagglutination-inhibition

Tandale et al. BMC Infectious Diseases 2010 10:255   doi:10.1186/1471-2334-10-255

Open Data