Table 2. Demographic characteristics of the two study populations.

Human population	Balbino Intervention village	Pedro de Souza Control village
Age (median, range)	27 (1–87)	27 (1–82)
Sex ratio (female/male)	1.25	1.07
Total population	630	281
Number of individuals meeting inclusion criteria at baseline	597	234
Percentage of individuals examined during the nine follow-up examinations (median, interquartile range)	77% (64–84%)	60% (52–62%)
Number of animals meeting inclusion criteria at baseline*	123–197	34–36
Percentage of animals examined during the nine follow-up examinations (median, interquartile range)	63% (45–79)	87% (74–100)

*: dogs and cats were infested; data of both species combined.