Table 2.
Changes in prevalence and intensity of S. haematobium infection among all pre-school aged children participants
| Variable | Number of children examined | Prevalence | Mean egg count | |||||
|---|---|---|---|---|---|---|---|---|
| n % (95% CI) | % Reduction | Eggs/10 ml urine (95% CI) | % Reduction | |||||
| Baseline | 12 months | Baseline | 12 months | Baseline | 12 months | |||
| Overall | 535 | 390 | 71 13.3 (10.5–16.4) |
11 2.8(1.4–5.0) |
78.9 | 2.1 (0.8–3.3) | 0.2 (0–0.4) | 90.5 |
| Community | ||||||||
| Chakondora | 138 | 90 | 7 5.1 (2.1–10.2) |
1 1.1(0–6.0) |
78.4 | 0.2 (0–0.4) | 0.03 (0–0.1) | 85.0 |
| Chihuri | 103 | 67 | 21 20.4 (13.1–29.5) |
3 4.5(0.9–12.5) |
77.9 | 4.6 (−1.3–10.6) | 0.9 (0–2.0) | 80.4 |
| Kaziro | 67 | 52 | 4 6.0 (1.7–14.6) |
0 | 100 | 2.2 (−0.2–4.6) | 0 | 100 |
| Mupfure | 169 | 141 | 32 18.9 (13.3–25.7) |
6 4.3(1.6–9.0) |
77.2 | 2.7 (1.1–4.2) | 0.1 (0–0.3) | 96.3 |
| Nduna | 58 | 40 | 7 12.1 (5.0–23.3) |
1 2.5(0.1–13.2) |
79.3 | 0.2 (0–0.4) | 0.1 (− 0.1–0.4) | 50.0 |
| Age (years) | ||||||||
| 0–1 | 83 | 55 | 4 4.8 (1.3–11.9) |
0 | 100 | 0.4 (0–1.0) | 0 | 100 |
| 2–3 | 251 | 185 | 27 10.8 (7.2–15.3) |
5 2.7(0.9–6.2) |
75.0 | 1.9 (−0.5–44.4) | 0.2 (0–0.4) | 89.5 |
| 4–5 | 201 | 150 | 40 19.9 (14.6–26.1) |
6 4.0(1.5–8.5) |
79.9 | 2.9 (1.4–4.4) | 0.4 (0–0.8) | 86.2 |
| Sex | ||||||||
| Male | 291 | 218 | 36 12.4 (8.8–16.7) |
6 2.8(1.0–5.9) |
77.4 | 1.9 (0.9–2.8) | 0.3 (−0.1–0.6) | 84.2 |
| Female | 244 | 172 | 35 14.3(10.2–19.4) |
5 2.9(1.0–6.7) |
79.7 | 2.3 (0–4.9) | 0.2 (0–0.4) | 91.3 |
The change in prevalence and intensity calculated from baseline and 12 months follow up for all participants regardless of successive participation