Table 1.

Characteristics of the subjects

Characteristic	N	%
Gender
Boy	822	47.6
Girl	904	52.4
Age group (years)
11.0-12.9	407	23.6
13.0-13.9	490	28.4
14.0-14.9	557	32.3
15.0-16.9	272	15.7
Household economic statusa
Highest	583	33.8
Middle	588	34.1
Lowest	555	32.2
Area of residence
Urban	1385	80.2
Suburb	341	19.8
BMI categoriesb
Normal weight	1483	85.9
Overweight/Obesity	243	14.1
Total	1726	100.0

^a Calculated from a list of 13 household facilities using principal components method [38], then ranked and divided into tertiles.

^b Category based on measured weight and height using IOTF cut-off points [36].