Table 1. Description of cohort subjects.

Characteristic	n (%)
Enrolled subjects	1007 (100)
Per-protocol subjects*	853 (84.7)
Age: Enrolled subjects / Per-protocol subjects
6 mos—5 yrs	203 (20.2)/ 148 (17.4)
6–15 yrs	201 (20.0) / 184 (21.6)
16–30 yrs	200 (19.9) / 168 (19.7)
31–50 yrs	202 (20.1) / 170 (19.9)
>50 yrs	201 (20.0) / 183 (21.5)
All ages	1007 (100) / 853 (100)
Male gender at enrollment	501 (49.8)
Number in household at enrollment
1	16 (1.6)
2–3	206 (20.5)
4–6	528 (52.4)
7–10	235 (23.3)
>10	22 (2.2)
Number of children in household at enrollment
0	179 (17.8)
1	224 (22.2)
2	228 (22.6)
3	183 (18.2)
>3	193 (19.2)

*Subjects who completed all study activities at 12 months including enrollment and 12-month blood collections.

n = number.