Table 2.
Schistosoma mansoni infection prevalence and intensity levels in years 1–3 in community wide treatment and school based treatment (SBT) arms.
| Study year | Study group | Study arms |
Prevalence (95% CI) |
Mean EPG (95% CI) |
|||
|---|---|---|---|---|---|---|---|
| CWT | SBT | CWT | SBT | CWT | SBT | ||
| 2011 | First year students | 1, 2, 3 | 4, 5, 6 | 26 (21–33) | 29 (24–35) | 53.0 (36.1–77.6) | 54.1 (37.4–78.1) |
| 9–12 years | 1, 2, 3 | 4, 5, 6 | 60 (55–66) | 63 (58–68) | 88.5 (70.0–111.9) | 91.6 (72.1–116.4) | |
| Adults | 1, 2, 3 | 4, 5, 6 | 42 (38–47) | 46 (41–50) | 61.7 (50.7–75.1) | 73.0 (59.4–89.5) | |
| 2012 | 9–12 years | 1, 2, 3 | 4, 5 | 51 (46–57) | 45 (38–52) | 79.3 (59.1–106.1) | 41.0 (29.7–56.6) |
| 2013 | First year students | 1 | 4 | 21 (14–32) | 18 (12–28) | 45.6 (25.3–81.5) | 32.3 (16.3–79.6) |
| 9–12 years | 1 | 4 | 48 (38–61) | 34 (25–45) | 76.9 (49.4–119.3) | 31.8 (18.4–54.4) | |
| Adults | 1 | – | 16 (12–22) | – | 22.5 (12.2–40.8) | – | |
CI, confidence interval; EPG, eggs per gram.