Table 2.

Sample characteristics (n = 26,974)

Variables	Category	n	Percentage	Lower 95% CI	Upper 95% CI
Year
	1995	3722	13.8	12.6	14.4
	2001	3992	14.8	14.5	15.7
	2006	4720	17.5	16.4	18.6
	2011	4667	17.3	16.3	18.5
	2016	9872	36.6	34.2	37.3
Child-level variables
Age of child
	< 2 months	22,415	83.1	82.4	83.7
	2–5 months	4559	16.9	16.3	17.6
Sex of child
	Male	13,568	50.3	49.6	51.0
	Female	13,406	49.7	49.0	50.4
Birth order	1st child	4936	18.3	17.6	18.9
	2nd child	4559	16.9	16.3	17.5
	3rd child	4019	14.9	14.4	15.5
	4th or higher	13,460	49.9	49.0	50.8
Maternal and household -level variables
Mother’s age
	15–24	9765	36.2	35.4	36.9
	25–34	11,734	43.5	42.7	44.3
	> 34	5476	20.3	19.7	20.9
Education
	No education	5071	18.8	17.8	19.9
	Primary	16,319	60.5	59.3	61.6
	Secondary/higher	5584	20.7	19.6	21.9
Occupation
	Not working	6069	22.5	21.3	23.8
	Service/skilled manual	6258	23.2	22.1	24.3
	Agriculture/self employed	14,620	54.2	52.5	56.0
Religious affiliation
	Catholic	22,658	84.0	82.7	85.2
	Islam/others	4316	16.0	14.8	17.3
BMI
	Underweight	2239	8.3	7.7	9.0
	Normal weight	20,608	76.4	75.4	77.3
	Overweight	3156	11.7	10.9	12.4
	Obese	998	3.7	3.3	4.1
Household wealth status
	Poor	10,547	39.1	37.4	40.9
	Non-poor	16,427	60.9	59.1	62.6
Child was intended
	No	16,186	56.3	55.3	57.3
	Yes	11,787	43.7	42.7	44.7
Cooking fuel
	Unclean	26,893	99.7	99.5	99.8
	Clean	81	0.3	0.2	0.5
Residency
	Urban	7040	26.1	24.6	27.7
	Rural	19,799	73.4	71.8	74.9