A total of 86% of students in the sample surveyed in 2012 were between 13 and 15 years old; 47.8% were male and 52.2% were female; and 17.2% students were from private schools and 82.8% were from public schools.
En la muestra de escolares estudiada en 2012, 86% de los alumnos tenían edad entre 13 y 15 años, 47,8% eran del sexo masculino y 52,2% del sexo femenino, siendo 17,2% alumnos de escuelas privadas y 82,8% de escuelas públicas.
Na amostra de escolares estudada em 2012, 86% dos alunos tinham idade entre 13 e 15 anos, 47,8% eram do sexo masculino e 52,2% do sexo feminino, sendo 17,2% alunos de escolas privadas e 82,8% de escolas públicas.