Table 4.
Reduction in the prevalence of S. haematobium infections in children from three schools in Al Salamania in Central Sudan, relative to the level of infections
| Variable | Total | Light infection | Heavy infection | Negative |
|---|---|---|---|---|
|
Base line |
|
|
|
|
| Children examined, n (%) |
562 (100) |
137(24.4) |
152 (27.0) |
273 (48.6) |
| Prevalence,% (95% CI) |
51.4(47.3─55.5) |
24.4 (21.0─28.0) |
27.0 (23.5─30.8) |
─ |
|
One year post treatment |
|
|
|
|
| Children examined, n (%) |
420 (100) |
17(4.0) |
19(4.5) |
384 (91.4) |
| Prevalence,% (95% CI) |
8.6(6.2─11.5) |
4.0 ( 2.4─6.3) |
4.5 (2.8─6.8) |
─ |
| Reduction in the prevalence,% (95% CI) | 83.3 (73.0─89.7) | 82.0 ( 63.1─93.7) | 83.3 (70.8─91.4) | ─ |