Table 1.

Demographics of Study Participants^a

Characteristic	2003, n = 408	2013, n = 373	2017–2018, n = 767
Female sex	214 (52)	191 (51)	445 (58)
Age (Years)
<5	73 (18)	51 (14)	127 (17)
5–20	119 (29)	140 (38)	248 (32)
21–40	138 (34)	112 (30)	217 (28)
41–60	61 (15)	45 (12)	109 (14)
61–80	15 (4)	21 (6)	58 (8)
>80	2 (<1)	4 (1)	8 (1)
Parasite prevalence	66 (16)	49 (13)	31 (4)

^aData are numbers (%).