Table 1.

Demographic characteristics of the studied population

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)	0.8
Logdir	31	8.5 (3.2)	0.6
Ngalagne kop	52	9.1 (2.8)	1.5
Puday	52	8.3 (3)	1.5
Sass ndiafaj	44	9.5 (2.7)	1.3
Total	329	8.8 (3.1)	1.4

^aStandard Deviation