[Relative validity of dietary indicators from the Brazilian National School-Based Health Survey among adolescents in Rio de Janeiro, Brazil].

This study evaluated the relative validity of the dietary indicators from the questionnaire used in the Brazilian National School-Based Health Survey (PeNSE) in the city of Rio de Janeiro, Brazil. The sample included 174 students. The following indicators were evaluated: regular consumption (≥ 5 times a week) of markers for healthy eating, markers for unhealthy eating, and routine eating habits (having meals with parents or guardians (MEAL), having breakfast (breakfast), and eating while studying or watching TV.

[Social representations of the body: a study of adolescents in the city of Rio de Janeiro, Brazil].

Body changes are central to adolescence as a stage of life. To approach conflicts experienced by adolescents with body changes, this study aimed to identify social representations of the body among adolescents in the last year of primary school in private and municipal schools in Rio de Janeiro, Brazil. Participants were 13 to 18 years of age and studied in schools in neighborhoods with the highest and lowest scores on the Social Development Index.

[Body image, nutritional status and practices for weight control among Brazilian adolescents].

The objective of this work is to describe the agreement between body image (BI) and nutritional status (NS) as well as to verify the association of BI and NS with behaviors regarding body weight (BRBW) among Brazilian adolescents. In 2009, a random sample of students in 9th year at public and private schools from 26 Brazilian state capitals and Federal District was studied. It was used a self-administered questionnaire with information about BI, BRBW and socioeconomic factors.