Comparative Assessment of Health Benefits of Praziquantel Treatment of Urogenital Schistosomiasis in Preschool and Primary School-Aged Children

Table 1

Demographic characteristics of the study cohort followed up at 12-week and 12-month posttreatment with complete parasitology data for S. haematobium infection.

Variable	Characteristic	Treated group		Untreated controls
		Baseline/12 weeks	12 months	Baseline/12 weeks
Sample size		303	233	61
Sex	M/F	142/161	108/125	29/32
Age (years)	Mean age (range)	6.6 (1–10)	6.9 (1–10)	4.9 (1–10)
	Median	6	7	5
Age group, (%)	1–5 years	109 (36%)	80 (34%)	40 (66%)
	6–10 years	194 (64%)	153 (66%)	21 (34%)

The data on voluntary untreated controls was only collected at baseline and 12-week follow-up surveys.