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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