Table 1 Baseline characteristics of the 90  S. haematobium -infected children included in the 62-day follow-up survey after treatment with a single dose of praziquantel (40 mg/kg)

No. of children

27

63

90

Sex

 Female n (%)

12 (44.4)

32 (50.8)

44 (48.9)

 Male n (%)

15 (55.6)

31 (49.2)

46 (51.1)

Age (years)

 Median

11

11

11

 Mean

11.3

10.9

11.2

 Range

7–15

8–15

7–15

S. haematobium infection status at baseline

 Light infection n  (<50 eggs/10 ml of urine)

21 (77.8)

36 (57.1)

57 (63.3)

 Heavy infection n  (≥50 eggs/10 ml of urine)

6 (22.2)

27 (42.9)

33 (36.7)

Mean S. haematobium egg counts (eggs/10 ml of urine)

 AM egg count (95% CI)

57 (16–98)

97 (66–128)

85 (60–110)

 GM egg count (95% CI)

11 (5–24)

41 (28–60)

28 (20–40)