Table 1.

Prevalence and intensity of S. haematobium infection among school children stratified by gender and age

	NO. examined	Positivity n (%)	Intensity n (%)
Gender			Mean (SD) egg/10ml urine	Heavy infection	light infection
Males	166	8(4.8)	1.22(0.60)	2 (1.2)	6 (3.6)
Females	157	7(4.5)	1.06 (0.56)	1 (0.6)	6 (3.8)
Age group(yr)
4-7	16	0(0)	0 (0)	0 (0)	0(0)
8-11	156	7(4.5)	1.39 (0.71)	2 (1.3)	5 (3.2)
12-15	151	8(5.3)	0.99 (0.49)	1 (0.7)	7 (4.6)
Total	323	15(4.6)	1.14 (0.41)	3 (0.9)	12 (3.7)