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 |
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