Table 1. Sample distribution according to gender, age, ethnic group and BMI of adolescents from the public schools in Santa Maria, RS, Brazil, 2012 (n=343).

	n	%
Gender
Female	210	61%
Male	133	39%
Age Group
12 years	117	35%
13 years	119	36%
14 years	67	20%
15 years	32	10%
Ethnic Group
Caucasian	164	49%
Black	41	12%
Brown	114	34%
Indigenous	15	5%
Asian	3	1%
BMI
Excessive lean	39	12%
Normal	236	72%
Overweight	41	13%
Obese	10	3%

Until 2% unrecognized answer and losses in the questionnaire; 4-5% unrecognized answer and losses in the questionnaire.