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

Table 2

Treatment efficacy of a single dose of praziquantel (40 mg/kg) against S. haematobium infection by age group at 12-week posttreatment. SE: standard error; CR: cure rate; ERR: egg reduction rate, with 95% confidence intervals (95% CI).

Age group	Baseline (pretreatment)			12-week posttreatment		Treatment efficacy
	Number (screened and treated)	Number (diagnosed positive)	Mean egg count (SE)	Number of cases cured	Mean egg count (SE)	CR (95% CI)	ERR (95% CI)
1–5 years	109	8	2.7 (1.79)	8	0.0 (—)	100.0% (67.7–100.0%)	100.0% (—)
6–10 years	194	84	28.8 (8.40)	79	0.6 (0.45)	94.0% (86.8–97.4%)	97.9% (89.9–99.5%)

The 95% confidence intervals for the ERRs were calculated using a bootstrap resampling method with 1000 replicates.