Table 1. Urinary tract morbidity in relation to sex, age and S. haematobium infection intensity.

Group	n	No morbidity	Light morbidity	Moderate morbidity	Severe morbidity	p-value
Boys	72	47.2%	25.0%	18.1%	9.7%
Girls	93	77.4%	15.1%	5.4%	2.2%	<0.001
5–9 years old	40	77.5%	15.0%	7.5%	0.0%
10–11 years old	89	62.9%	16.9%	11.2%	9.0%
12–15 years old	36	52.8%	30.5%	13.9%	2.8%	0.114
Not infected	105	74.2%	16.2%	6.7%	2.9%
Light Infection	36	66.7%	22.2%	11.1%	0.0%
Heavy infection	24	16.6%	29.2%	29.2%	0.0%	<0.001
Overall	165	64.2%	19.4%	10.9%	5.5%