Table 5 Prevalence and mean intensity of STH and S. haematobium infections by sub-county and village
Villages | STH infectiona | S. haematobium (n = 20) | ||
|---|---|---|---|---|
STH combined (n = 30) | Hookworms (n = 28) | T. trichiura (n = 3) | ||
Prevalence of infection, %(95%CI) | ||||
 Kinango sub-County | 2.8 (0.7–12.2) | 2.5 (0.6–9.9) | 0.7 (0.1–4.9) | 4.3 (2.2–8.3) |
  Dumbule village | 0.7 (0.1–4.9) | 0.7 (9.1–4.9) | 0 | 2.8 (1.1–7.5) |
  Mwachinga village | 4.9 (2.4–10.2) | 4.2 (1.9–9.2) | 1.4 (0.4–5.6) | 5.7 (2.9–11.2) |
 Matuga sub-County | 8.8 (6.3–12.3) | 8.4 (5.4–13.0) | 0.4 (0.1–2.4) | 3.2 (2.7–3.8) |
  Bilashaka village | 10.4 (6.1–17.8) | 10.4 (6.1–17.8) | 0 | 3.5 (1.3–9.2) |
  Mwaluphamba village | 7.4 (4.1–13.4) | 6.7 (3.5–12.5) | 0.7 (0.1–5.2) | 2.9 (1.1–7.7) |
 Overall prevalence | 5.6 (2.8–11.3) | 5.3 (2.5–10.9) | 0.6 (0.2–1.9) | 3.8 (2.6–5.4) |
Mean intensity of infection, epg (95%CI) | ||||
 Kinango sub-County | – | 496 (95–2587) | 59 (8–419) | 39 (13–118) |
  Dumbule | – | 77 (1–11,467) | 0 | 17 (3–93) |
  Mwachinga | – | 913 (108–7699) | 0 | 61 (16–228) |
 Matuga sub-County | – | 2453 (1114–5403) | 43 (7–262) | 91 (64–129) |
  Bilashaka |  | 0 | 0 | 108 (12–962) |
  Mwaluphamba |  | 1538 (273–8666) | 0 | 76 (9–639) |
 Overall mean intensity | – | 1414 (547–3654) | 52 (17–162) | 63 (36–112) |