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Table 2 Changes in prevalence and intensity of S. haematobium infection among all pre-school aged children participants

From: Reinfection of urogenital schistosomiasis in pre-school children in a highly endemic district in Northern Zimbabwe: a 12 months compliance study

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
  1. The change in prevalence and intensity calculated from baseline and 12 months follow up for all participants regardless of successive participation