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Table 3 Prevalence of soil-transmitted helminths by microscopy for Huambo, Uige and Zaire provinces

From: Burden and factors associated with schistosomiasis and soil-transmitted helminth infections among school-age children in Huambo, Uige and Zaire provinces, Angola

 

Huambo

Uige

Zaire

Total

Hookworm

N = 1501

N = 1816

N = 330

N = 3647

 Light intensity, % (95% CI)

0.1 (0.02–1.1)

11.1 (7.2–16.8)

4.2 (0.9–18.1)

5.2 (3.7–7.3)

 Moderate intensity, % (95% CI)

0

0

0

0

 Heavy intensity, % (95% CI)

0

0

0

0

 Overall, % (range)

0.1 (0–0.6)

11.1 (0–42.6)

4.2 (0–8.0)

5.2 (0–42.6)

A. lumbricoides

N = 1501

N = 1816

N = 330

N = 3647

 Light intensity, % (95% CI)

12.4 (6.6–21.9)

39.4 (30.1–49.6)

16.5 (8.7–28.9)

24.5 (19.1–30.8)

 Moderate intensity, % (95% CI)

(0.02–0.9)

1.4 (0.4–5.0)

0

0.7 (0.2–2.4)

 Heavy intensity, % (95% CI)

0

0

0

0

 Overall, % (range)

12.5 (0–32.8)

40.8 (3.4–89.7)

16.5 (0–30.9)

25.1 (0–89.7)

T. trichiura

N = 1496

N = 1813

N = 330

N = 3639

 Light intensity, % (95% CI)

0.6 (0.2–1.4)

7.1 (5.2–9.7)

2.4 (0.8–6.7)

3.6 (2.5–5.0)

 Moderate intensity, % (95% CI)

0.08 (0.02–0.4)

0

0

0.04 (0.01–0.2)

 Heavy intensity, % (95% CI)

0

0

0

0

 Overall, % (95% CI)

0.7 (0–4.2)

7.1 (0–24.2)

2.4 (0–7.4)

3.6 (0–7.4)

Any STH

N = 1501

N = 1818

N = 330

N = 3647

 Overall, % (range)

13.1 (0.8–33.2)

49.4 (5.2–89.7)

20.6 (6.7–36.8)

29.5 (0.8–89.7)

  1. CI confidence interval, N number of school children providing specimens, Range municipality range, STH soil-transmitted helminth. Adjusted for clustering at school level