Table 3 Overall prevalence (P, %), mean intensity (epg), relative reductions % (Wald test: Z-statistic, P-value) and absolute reductions % (Wald test: Z-statistic, P-value) of STHs: Baseline and mid-term
Infection | Y1 baseline | Y3 mid-term | PRR % | ARP % |
|---|---|---|---|---|
Prevalence | P % (95 % CI) | P% (95 % CI) | (Z-statistic, P-value) | (Z-statistic, P-value) |
STH combined | 32.3 (30.0–34.8) | 16.4 (14.4–18.6) | 49.3 (Z = -13.69, P < 0.001) | 15.9 (Z = -16.95, P < 0.001) |
Hookworms | 15.4 (13.6–17.6) | 2.3 (1.8–3.0) | 85.0 (Z = -14.65, P < 0.001) | 13.1 (Z = -13.92, P < 0.001) |
A. lumbricoides | 18.1 (15.8–20.7) | 11.9 (10.2–13.9) | 34.0 (Z = -8.81, P < 0.001) | 6.1 (Z = -8.15, P < 0.001) |
T. trichiura | 6.7 (5.4–8.2) | 4.5 (3.4–6.0) | 32.3 (Z = -3.91, P < 0.001) | 2.1 (Z = -4.36, P < 0.001) |
Mean intensity | epg (95 % CI) | epg (95 % CI) | IRR % (Z-statistic, P-value) | |
Hookworms | 63 (50–81) | 8 (5–14) | 87.1 (Z = -6.60, P < 0.001) | – |
A. lumbricoides | 1659 (1378–1998) | 960 (801–1151) | 42.1 (Z = -7.98, P < 0.001) | – |
T. trichiura | 33 (11–105) | 17 (11–26) | 49.5 (Z = -1.11, P = 0.267) | – |