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) | ─ |