Table 6 Comparison of the overall infection prevalence among ECD and older children, 2012–2017
Year/Survey | No. sampled (%) | STH combined prevalence (95% CI) | Any schistosome prevalence (95% CI) | Prevalence of STH combined moderate to heavy intensity (95% CI) | Prevalence of any schistosome moderate to heavy intensity (95% CI) |
|---|---|---|---|---|---|
Year 1: Baseline | |||||
ECD children | 0 | 0 | 0 | 0 | 0 |
Older children | 3193 (100) | 32.7 (29.2–36.5) | 25.9 (16.4–40.8) | 6.2 (4.5–8.6) | 2.8 (1.3–6.4) |
Year 1: Post-MDA | |||||
ECD children | 903 (15.7) | 9.0 (6.3–12.8) | * | 1.1 (0.6–2.2) | 1.1 (0.4–2.9) |
Older children | 4865 (84.3) | 9.1 (6.8–12.1) | * | 0.8 (0.5–1.3) | 1.5 (0.7–3.4) |
Year 2: Pre-MDA | |||||
ECD children | 267 (16.5) | 10.9 (5.1–23.2) | 3.7 (1.4–10.4) | 1.1 (0.4–3.2) | 1.5 (0.6–3.6) |
Older children | 1347 (83.5) | 11.4 (6.1–21.2) | 6.9 (3.6–13.3) | 0.4 (0.2–1.3) | 2.8 (1.4–5.7) |
Year 2: Post-MDA | |||||
ECD children | – | – | – | – | – |
Older children | – | – | – | – | – |
Year 3: Midterm | |||||
ECD children | 3439 (16.3) | 19.9 (17.4–22.7) | 13.8 (9.0–21.1) | 8.6 (7.1–10.4) | 1.3 (0.7–2.6) |
Older children | 17624 (83.7) | 15.6 (13.7–17.9) | 12.9 (8.4–19.9) | 5.2 (4.3–6.2) | 1.3 (0.7–2.4) |
Year 3: Post-MDA | |||||
ECD children | 1026 (16.7) | 7.6 (5.3–10.9) | 7.5 (3.7–15.1) | 1.6 (0.9–2.8) | 0.2 (0–0.8) |
Older children | 5136 (83.3) | 6.1 (4.5–8.3) | 8.8 (4.9–15.6) | 0.6 (0.3–0.9) | 0.3 (0.2–0.5) |
Year 4: Pre-MDA | |||||
ECD children | 1011 (16.3) | 21.2 (16.3–27.4) | 7.8 (3.1–19.7) | 10.4 (7.6–14.2) | 2.2 (1.0–4.6) |
Older children | 5183 (83.7) | 15.0 (11.9–18.9) | 9.9 (3.7–26.3) | 6.2 (4.6–8.4) | 2.0 (0.9–4.4) |
Year 4: Post-MDA | |||||
ECD children | 824 (16.6) | 6.8 (4.5–10.2) | 6.8 (3.1–14.7) | 0.6 (0.2–1.7) | 0.4 (0.1–1.1) |
Older children | 4143 (83.4) | 5.6 (4.0–7.8) | 9.0 (4.2–19.4) | 0.7 (0.3–1.3) | 1.0 (0.4–2.5) |
Year 5: Endline | |||||
ECD children | 3424 (16.5) | 17.3 (14.8–20.2) | 7.8 (4.4–14.1) | 10.5 (8.8–12.4) | 2.8 (1.9–4.2) |
Older children | 17386 (83.6) | 12.7 (10.9–14.9) | 9.5 (6.2–14.6) | 6.0 (5.0–7.2) | 2.2 (1.6–3.0) |
Year 5: Post-MDA | |||||
ECD children | 1033 (16.7) | 5.1 (3.5–7.4) | 6.4 (2.9–14.1) | 3.2 (2.1–4.8) | 2.9 (1.8–4.7) |
Older children | 5147 (83.3) | 2.6 (1.5–4.3) | 4.5 (2.3–8.8) | 1.7 (1.3–2.3) | 1.8 (1.3–2.5) |