Table 5 Relative and absolute reduction, % (Wald test: Z-statistic, P-value), in prevalence and mean intensity of infection: Baseline to Y3 pre-MDA
Infection | Relative reduction (%) | Relative reduction (%) | Relative reduction (%) | Absolute reduction (%) |
|---|---|---|---|---|
Y1 to Y2 | Y2 to Y3 | Y1 to Y3 | Y1 to Y3 | |
STH combined | ||||
Prevalence reduction | 42.3 (Z = -7.33, P < 0.001) | 14.3 (Z = -2.10, P = 0.035) | 50.6 (Z = -9.02, P < 0.001) | 16.8 (Z = -11.46, P < 0.001) |
Intensity Reduction | 36.6 (Z = -5.02, P < 0.001) | 15.7 (Z = -1.45, P = 0.148) | 46.6 (Z = -5.05, P < 0.001) | – |
Hookworm | ||||
Prevalence reduction | 72.6 (Z = -6.37, P < 0.001) | 45.8 (Z = -3.07, P = 0.002) | 85.2 (Z = -8.15, P < 0.001) | 14.0 (Z = -8.12, P < 0.001) |
Intensity reduction | 71.7 (Z = -3.60, P < 0.001) | 66.3 (Z = -3.21, P = 0.001) | 90.4 (Z = -6.36, P < 0.001) | – |
A. lumbricoides | ||||
Prevalence reduction | 35.2 (Z = -6.06, P < 0.001) | 1.0 (increase)a (Z = 0.20, P = 0.843) | 34.4 (Z = -6.17, P < 0.001) | 6.7 (Z = -5.37, P < 0.001) |
Intensity reduction | 35.8 (Z = -4.66, P < 0.001) | 14.5 (Z = -1.30, P = 0.192) | 45.1 (Z = -4.66, P < 0.001) | – |
T. trichiura | ||||
Prevalence reduction | 5.9 (Z = -0.43, P = 0.671) | 40.5 (Z = -3.46, P = 0.001) | 44.0 (Z = -3.86, P < 0.001) | 2.4 (Z = -3.46, P < 0.001) |
Intensity reduction | 45.5 (increase)a (Z = 1.35, P = 0.176) | 44.3 (Z = -2.14, P = 0.033) | 19.0 (Z = -1.06, P = 0.290) | – |