Table 4. Prevalence (and CI95) of infections malaria, schistosomiasis and geohelminths.
| Preschool–aged children | School–aged children | Mothers | |
| No. of individuals recruited * | 1237 | 1142 | 960 |
| Malaria (Giemsa-stained microscopy) | 18.4 (16.2–20.6) | 18.2 (16.0–20.6) | 9.6 (7.8–11.6) |
| Light parasitaemia 1–499 parasites/µL of blood | 50.2 (43.5–56.9) | 70.2 (63.5–76.3) | 81.5 (72.0–88.9) |
| Moderate parasitaemia 500–1,999 n/µL of blood | 20.7 (15.6–26.6) | 19.7 (14.5–25.8) | 10.9 (5.3–19.0) |
| Heavy parasitaemia 2,000–9,999 n/µL of blood | 19.8 (14.8–25.6) | 6.7 (3.7–11.0) | 4.3 (1.1–10.8) |
| Very heavy parasitaemia >10,000 n/µL of blood | 9.3 (5.8–13.8) | 3.4 (1.4–6.8) | 3.3 (0.7–9.2) |
| Geometric mean of positives (CI95) in n/µL of blood | 649.9 (648.6–651.1) | 309 (307.7–310.2) | 194.4 (193.1–195.7) |
| Micro-hematuria (proxy for urinary schistosomiasis) | 10.0 (8.2–11.9) | 16.6 (14.5–18.9) | 21.7 (19.1–24.4) |
| Ascaris lumbricoides : | 15.3 (13.2–17.6) | 17.3 (15.1–19.7) | 10.7 (8.7–12.9) |
| Light parasite load 1–4,999 epg | 9.4 (7.7–11.2) | 10.5 (8.7–12.5) | 7.7 (6.1–9.7) |
| Moderate to heavy parasite load ≥5,000 epg | 5.9 (4.6–7.5) | 6.8 (5.4–8.5) | 3.0 (1.9–4.3) |
| Geometric mean (CI95) in epg | 2.20 (1.02–3.38) | 2.75 (1.55–3.95) | 1.09 (0.00–2.25) |
| Trichuris trichiura : | 7.2 (5.8–8.9) | 13.9 (11.8–16.1) | 9.7 (7.8–11.8) |
| Light parasite load 1–999 epg | 7.1 (5.7–8.8) | 13.4 (11.4–15.6) | 9.6 (7.7–11.7) |
| Moderate to heavy parasite load ≥1,000 epg | 0.1 (0.0–0.5) | 0.5 (0.2–1.1) | 0.1 (0.0–0.6) |
| Geometric mean (CI95) in epg | 0.37 (0.00–1.45) | 0.90 (0.00–2.01) | 0.52 (0.00–1.61) |
| Hookworms (Kato–Katz) | 4.2 (3.1–5.6) | 6.7 (5.3–8.4) | 13.7 (11.5–16.1) |
| Light parasite load 1–1,999 epg | 3.9 (2.8–5.2) | 6.5 (5.1–8.1) | 13.1 (10.9–15.5) |
| Moderate to heavy parasite load ≥2,000 epg | 0.4 (0.1–0.9) | 0.3 (0.1–0.8) | 0.6 (0.2–1.3) |
| Geometric mean (CI95) in epg | 0.24 (0.00–1.31) | 0.42 (0.00–1.51) | 1.02 (0.00–2.15) |
| Other intestinal parasites (Kato–Katz) | |||
| Enterobius vermicularis | 0.3 (0.1–0.8) | 0.2 (0.0–0.7) | 0.1 (0.0–0.6) |
| Hymenolepsis nana | 6.2 (4.9–7.8) | 7.3 (5.8–9.0) | 1.9 (1.1–3.1) |
| Taenia spp. | 0.1 (0.0–0.5) | 0.2 (0.0–0.7) | 0.1 (0.0–0.6) |
Children were divided into two groups: preschool children (0–5 years of age) and school-aged children (6–15 years of age).
*
Note that for the each diagnostic tool, the sample population size (N) was different; for information on number of tests conducted see Results.