a significant trendp < 0.001
Body Mass Index The mean (SD) BMI was 16.05 (3.3) kg/m 2 (Table 1 ), with a minimum of 8.3 kg/m 2 and a maximum of 76.9 kg/m 2 , showing a significant trend with the lowest value in the public schools (with the lowest socioeconomic status [SES]) and the highest value in the private schools (with the highest SES) (p < 0.001) (Table 2 ).