Table 1. Baseline demographic characteristics of participants.

	Total	Rural	Urban
	(N = 1100)a	(N = 526)b	(N = 574)
Characteristic	No. (%)	No. (%)	No. (%)
Male gender	583 (53.0)	264 (50.2)	319 (55.6)
Age in months
1.5 to 6	352 (32.0)	159 (30.2)	193 (33.6)
>6 to 12	376 (34.2)	184 (35.0)	192 (33.4)
>12 to 24	372 (33.8)	183 (34.8)	189 (33.0)
Number of people living in household
0–1	1 (0.1)	0 (0)	1 (0.2)
2–5	742 (67.4)	314 (59.7)	428 (74.6)
6–10	327 (29.7)	196 (37.3)	131 (22.8)
>10	30 (2.7)	16 (3.0)	14 (2.4)

a. N = number of children.

b. Nasopharyngeal swab missing from one child in rural cohort.