Assessment of anthropometric indexes of children and adolescents with Down syndrome.

Objective: To compare the agreement in the classification of the weight-for-age (W/A) and height-for-age (HA) indexes for children and adolescents with Down syndrome (DS) according to selected international reference distributions.

Methods: A cross-sectional study was carried out in children (2 to 9.9 years old) and adolescents (10 to 17.

[Accuracy of different body mass index reference values to predict body fat in adolescents].

This study evaluates the accuracy of cutoff points in the body mass index (BMI) for identifying adolescents with overweight, compared to the percentage of body fat, estimated by electric bioimpediance, in a probabilistic sample of 610 adolescents from 12 to 19 years of age (222 boys and 388 girls) enrolled in public schools in Niterói, Rio de Janeiro, Brazil. ROC was used to evaluate the sensitivity and specificity of BMI cutoffs from one Brazilian, two North American, and one international reference. The cutoff points in the study sample were lower than the other references, with 76% to 95% sensitivity and 75% to 95% specificity.

Overweight and risk of overweight in schoolchildren in the city of Rio de Janeiro, Brazil: prevalence and characteristics.

The association of overweight and risk of overweight with socio-economic and demographic variables was investigated among schoolchildren in the city of Rio de Janeiro, Brazil between 1995 and 1996. Data were obtained by direct interview and physical examination of boys and girls aged between 6 and 11 years in a two-stage, random sample, population-based survey. Univariate analysis was performed on the association between socio-economic and demographic predictors of overweight/risk of overweight and the dependent variables, i.