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Table 3 Changes in Prevalence and intensity of S. haematobium infection among the compliant pre-school aged children/group

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
Number of infected individuals % (95% CI) % Reduction Eggs/10 ml urine (95% CI) % Reduction
Baseline 12 months   Baseline 12 months
Overall 169 42
24.9 (18.5–32.1)
3
1.8 (0.4–5.1)
92.8 3.1 (1.5–4.8) 0.1(0–0.1) 96.8
Community
 Chakondora 41 4
9.8 (2.7–23.1)
0 100 0.4 (−0.2–1.1) 0 100
 Chihuri 26 10
38.5 (20.2–59.4)
0 100 3.8 (0.8–6.7) 0 100
 Kaziro 12 2
16.7(2.1–48.4)
0 100 4.8 (−4.5–14.0) 0 100
 Mupfure 72 22
30.6 (20.2–42.5)
3.
4.2 (0.9–11.7)
86.3 4.8 (1.4–8.2 0.1(−0.04–0.3) 97.9
 Nduna 18 4
22.2(6.4–47.6)
0 100 0.4 (−0.2–1.0) 0 100
Age (years)
 0–1 1 1
100
0 100 9.7 0 100
 2–3 84 14
16.7(9.4–26.4)
1
1.2 (0–6.5)
92.8 0.9(0.2–1.6) 0.1 (0–0.2) 88.9
 4–5 84 27
32.1(22.4–43.2)
2
2.4 (0.3–8.3)
92.5 5.2(2.1–8.4) 0.04 (0–0.1 99.2
Sex
 Male 89 20
22.5(14.3–32.6)
1
1.1(0–6.1)
95.1 3.8(1.0–6.6) 0.01(0–0.04) 99.7
 Female 80 22
27.5(18.1–38.6)
2
2.5(0.3–8.7)
90.9 2.4(0.8–3.9) 0.1(0–0.2) 95.8
  1. The change in prevalence and intensity calculated from baseline and 12 months follow up for all compliant participants