Table 1. Socio-demographic characteristics of household members and selected participants.

Characteristic category	Sub-category	Household members N = 4825		Enrolled participants N = 780		p-value a
		n	%	n	%
Age (years)b,c	0–14	1,964	41	284	36
	15–29	1,549	32	231	30
	30–44	684	14	147	19
	45–59	464	10	88	11
	60–74	133	3	25	3
	75+	29	1	4	<1
Sex	Males	2,469	51	334	43	<0.01
	Females	2,356	49	446	57
Education leveld	No schooling	2,375	58	387	57	0.66
	Any schooling	1,755	42	295	43
Literacyd	Not literate	2,852	67	459	66	0.35
	Literate (reading, writingand numeracy)	1,375	33	237	34
Employment Statuse	Currently Employed	1,360	90	168	89	0.94
	Unemployed	159	10	20	11

^ap-value for X² test for homogeneity of proportions by the specific sub-categories of each characteristic. If p<0.05, the characteristic proportion distribution (e.g. sex) is different between household members and enrolled participants.

^bX² test not performed for age since participants were selected based on their age so the distribution is not expected to be similar to that of all household members.

^cAge was missing for two household members.

^dEducation level and literacy was obtained for individuals aged ≥5 years only.

^eEmployment status was obtained for individuals of employable age (≥10 years) only.