From: Efficacy of praziquantel against urinary schistosomiasis and reinfection in Senegalese school children where there is a single well-defined transmission period
Villages
Sample size at baseline
Age mean (SDa) in years
Sex ratio (M/ F)
Gajak
98
7.8 (2.6)
0.8
Godel
52
8.2 (2.8)
Logdir
31
8.5 (3.2)
0.6
Ngalagne kop
9.1 (2.8)
1.5
Puday
8.3 (3)
Sass ndiafaj
44
9.5 (2.7)
1.3
Total
329
8.8 (3.1)
1.4