Table 1. Description of the study population.

Demographic and household factors		N (%)
Union	Rajbila	10,498 (44.9)
	Kuhalong	12,874 (55.1)
Sex	Males	11,456 (49.0)
	Females	11,916 (51.0)
Age	<6 months	988 (4.2)
	6–59 months	2,621 (11.2)
	5–14 years	5,200 (22.3)
	≥15 years	14,563 (62.3)
Ethnicity	Bengali	4,821 (20.6)
	Total tribal	18,551 (79.4)
	Marma	14,035 (60.1)
	Tanchangya	2,085 (8.9)
	Khyang	1,134 (4.9)
	Chakma	802 (3.4)
	Tripura	391 (1.7)
	Other tribal	104 (0.4)
Education level (age ≥15 years)	0–2 years	8,598 (59.0)
	3–5 years	2,668 (18.3)
	≥6 years	3,297 (22.6)
Occupation (age ≥15 years)	Agricultural	4,609 (31.7)
	Day labor	1,996 (13.7)
	Jhum cultivation	2,544 (17.5)
	Other	5,414 (37.2)
Bed net use	Yes	18,869 (89.3)
	No	2,255 (10.7)
Distance from house to pond	0–50 meters	4,304 (18.4)
	50–100 meters	1,897 (8.1)
	>100 meters	1,012 (4.3)
	No pond	16,141 (69.1)
Distance from house to forest	0–25 meters	7,869 (33.7)
	25–50 meters	9,187 (39.1)
	>50 meters	6,316 (27.0)
Own animals	No	4,285 (18.3)
	Yes	19,087 (81.7)
Total		23,372