Table 1. Baseline S. haematobium infection intensity and demographic characteristics of initial and post-treatment follow-up cohorts.

		Baseline	9-wk	2-yr
Age (yrs)		13.8 (12.8, 14.9)	13.4 (12.3, 14.6)	12.8 (11.4, 14.4)
Sex (n (%))	Female	186 (57.1%)	141 (57.1%)	96 (60%)
	Male	140 (42.9%)	104 (42.9%)	64 (40%)
Village (n (%))	Kalabougou	179 (54.9%)	149 (60.8%)	117 (73.1%)
	Kaladangan and Guenidaga	149 (45.1%)	96 (39.2%)	43 (26.9%)
S. haematobium (eggs/10 ml)		14.3 (11.5, 17.8)	15.0 (11.7, 19.2)	13.9 (10.2, 18.9)

Geometric mean and 95% confidence interval are shown for age and S. haematobium infection intensity.