Table 2 Comparison of STH and SCH prevalence in the subset of districts surveyed at baseline (2007–2009), 2015 and 2021
Survey | Any STH % (95% CI) | Hookworm % (95% CI)* | Ascaris lumbricoides % (95% CI)* | Trichuris trichiura % (95% CI)* | Any SCH % (95% CI)** | Schistosoma mansoni % (95% CI)* | Schistosoma haematobium % (95% CI)** |
|---|---|---|---|---|---|---|---|
Prevalence % (95% CI) | |||||||
Baseline (BL) | 29.2 (27.9–30.5) | 28.8 (27.5–30.1) | 0.21 (0.11–0.41) | 0.41 (0.25–0.65) | 22.2 (21.0–23.4) | 4.15 (3.61–4.77) | 19.13 (18–20.3) |
2015 | 12.0 (11.1–13.0) | 11.4 (10.6–12.4) | 0.24 (0.13–0.44) | 0.57 (0.39–0.84) | 6.60 (5.90–7.30) | 1.51 (1.19–1.90) | 5.10 (4.51–5.76) |
2021 | 19.7 (18.2–21.4) | 19.6 (18.1–21.3) | 0.04 (0.002–0.27) | 0.08 (0.01–0.33) | 5.90 (5.40–6.51) | 2.56 (1.98–3.29) | 5.09 (4.64–5.67) |
RR (2015–2021) | − 64.2 (P < 0.01) | − 72 (P < 0.01) | 83.1 (P = 0.07) | 85.5 (P < 0.01) | 10.2 (P = 0.13) | − 69.5 (P < 0.01) | − 0.55 (P = 0.97) |
RR (BL-2021) | 31.5 (P < 0.01) | 30.8 (P < 0.01) | 80.5 (P = 0.11) | 79.5 (P = 0.02) | 73.4 (P < 0.01) | 38.3 (P < 0.01) | 73.2 (P < 0.01) |
Average intensity (95% CI) | |||||||
Baseline (BL) | – | 6.02 (5.95–6.09) | 0.09 (0.08–0.10) | 0.19 (0.18–0.20) | – | – | – |
2015 | – | 33.1 (33.6–34.0) | 7.04 (6.96–7.11) | 20.6 (20.5–20.8) | – | 2.69 (2.64–2.73) | 1.30 (1.22–1.38) |
2021 | – | 82.5 (82.1–82.8) | 0.04 (0.03–0.05) | 0.15 (0.14–0.17) | – | 13.0 (12.9–13.2) | 112 (111–113)* |
RR (2015–2021) | – | − 143.9 (P < 0.01) | 99.4 (P < 0.01) | 99.3 (P < 0.01) | – | − 401 (P < 0.01) | − 8510 (P < 0.01)* |
RR (BL-2021) | – | − 1269.3 (P < 0.01) | 55.4 (P < 0.01) | 19.5 (P < 0.01) | – | – | – |