Table 2.

BMI by selected socio-economic variables

Characteristics	Categories	Unadjusted comparison		Multiple linear regression
		BMI N (mean ± SD)	P	Coefficient	95% CI (LL, UL)#	P
Slum	Non-slum	477 (21.4 ± 3.9)	0.002	Reference
	Slum	118 (20.2 ± 3.5)		-0.33	-1.04, 0.39	0.369
Place of residence	Town/city	168 (22.5 ± 4.3)		Reference
	Country side	427 (20.6 ± 3.5)	<0.001	-1.21	-1.85, -0.57	<0.001
Composite variable of household characteristics	Poor	167 (19.2 ± 2.6)		Reference
	Not-poor	425 (21.9 ± 4.0)	<0.001	1.51	0.82, 2.20	<0.001
Composite variable of mass media access	Not at all	112 (19.2 ± 2.9)		Reference
	At least one media	482 (21.6 ± 3.9)	<0.001	1.19	0.44, 1.94	0.002
Education	No education	197 (19.7 ± 3.2)		Reference
	1–5 years education	171 (20.6 ± 3.4)	0.011	0.36	-0.37, 1.08	0.331
	6+ years education	227 (22.8 ± 4.0)	<0.001	1.94	1.21, 2.67	<0.001

^#LL = Lower limit and UL = Upper limit