Table 7.

Comparisons of change in adult prevalence and intensity of Schistosoma mansoni infection between year 1 and year 5 for each arm

	Prevalence
Arm	Crude PR (CI)	P-value	Adjusted PR (CI)	P-value
1	0.27 (0.15, 0.47)	< 0.001	0.25 (0.15, 0.45)	< 0.001
2	0.27 (0.17, 0.43)	< 0.001	0.26 (0.17, 0.42)	< 0.001
3	0.30 (0.21, 0.44)	< 0.001	0.30 (0.21, 0.44)	< 0.001
4	0.39 (0.25, 0.59)	< 0.001	0.37 (0.25, 0.56)	< 0.001
5	0.36 (0.24, 0.52)	< 0.001	0.38 (0.26, 0.54)	< 0.001
6	0.37 (0.28, 0.47)	< 0.001	0.38 (0.29, 0.49)	< 0.001

	Prevalence of heavy-intensity infections (eggs per gram feces ≥ 400)
Arm	Crude AMR (CI)	P-value	Adjusted AMR (CI)	P-value
1	0.30 (0.07, 1.30)	0.11	0.27 (0.07, 1.05)	0.06
2	0.18 (0.05, 0.59)	0.005	0.18 (0.06, 0.61)	0.006
3	0.14 (0.06, 0.37)	< 0.001	0.17 (0.06, 0.46)	< 0.001
4	0.29 (0.10, 0.86)	0.03	0.25 (0.09, 0.71)	0.009
5	0.29 (0.08, 1.04)	0.06	0.29 (0.09, 0.99)	0.05
6	0.23 (0.11, 0.45)	< 0.001	0.19 (0.09, 0.45)	< 0.001

	Intensity
Arm	Crude AMR (CI)	P-value	Adjusted AMR (CI)	P-value
1	0.24 (0.10, 0.58)	0.002	0.25 (0.10, 0.60)	0.002
2	0.23 (0.10, 0.50)	< 0.001	0.24 (0.11, 0.50)	< 0.001
3	0.24 (0.12, 0.46)	< 0.001	0.23 (0.12, 0.43)	< 0.001
4	0.37 (0.17, 0.81)	0.01	0.41 (0.19, 0.87)	0.02
5	0.41 (0.14, 1.25)	0.12	0.41 (0.14, 1.20)	0.10
6	0.32 (0.19, 0.54)	< 0.001	0.32 (0.19, 0.54)	< 0.001

AMR = arithmetic mean ratio; PR = prevalence ratio. Adjusted PRs and AMRs control for age and gender.