Assessing the Health Impact of the following Measures in Schools in Maradi (Niger): Construction of Latrines, Clean Water Supply, Establishment of Hand Washing Stations, and Health Education

Table 5

Prevalence of parasites found before and after the project in programme schools and control schools.

Parasite	Before the project		After the project		𝜒^2	𝑃
	Number positive	Prevalence (%)	Number positive	Prevalence (%)
Hookworm
Programme group	1	0.3	0	0	5𝑒−04	0.98
Control group	0	0	0	0
Ascaris lumbricoides
Programme group	0	0	0	0
Control group	1	0.3	0	0
Pinworm
Programme group	3	0.9	8	2.2	1.3	0.25
Control group	2	0.6	11	3.3	4.63	0.03
Entamoeba histolytica
Programme group	1	0.3	0	0	5𝑒−04	0.98
Control group	0	0	0	0
Trichuris trichiura
Programme group	3	0.9	0	0	1.43	0.23
Control group	0	0	0	0
Hymenolepis nana
Programme group	0	0	7	1.9	0.92	0.02
Control group	5	1.5	11	3.3	1.36	0.24