Irregular meal habits, smoking and low education were associated with the under-report of EI. Both FR and 24hR are subjected to bias suggesting the need of refining the procedures applied in dietary assessment methods.

The study objective was to analyse the association between food insecurity and the weight and height status of adolescents from a low-income area in the metropolitan region of Rio de Janeiro, Brazil. The population-based cross-sectional survey included 523 adolescents aged 12-18 years, selected by a three-stage cluster sample. Dietary intake was ascertained with a food frequency questionnaire and family food insecurity was assessed with a validated questionnaire. The analysis estimated weighted means of energy and nutrient intakes by families' socioeconomic characteristics and the association between dietary intake with overweight and stunting. The prevalence of mild family food insecurity was 36%, and 24% of the families reported moderate or severe food insecurity. Overweight prevalence was 24%, and the prevalence of stunting was 9%, with no significant differences between sex or age groups. Family food insecurity was associated with unfavourable socioeconomic characteristics, but there was no association between socioeconomic characteristics (including family food insecurity) and overweight or stunting. Moderate or severe family food insecurity was inversely associated with intake of protein and calcium. In addition, stunting was associated with low calcium and iron intake. The co-existence of family food insecurity with overweight and stunting implies a high nutritional risk for adolescents from poor areas of Rio de Janeiro. Nevertheless, the observed absence of a statistical association between family food insecurity and weight status attests to the complexity of this issue.

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ResumoObjetivo: Avaliar a concordância da categorização dos índices peso para idade (P/I) e estatura para idade (E/I) em indivíduos com síndrome de Down segundo diferentes curvas.Métodos: Desenvolveu-se estudo transversal em crianças (2 a 9,9 anos de idade) e adolescentes (10 a 17,9 anos de idade) com síndrome de Down assistidos em instituições da região metropolitana do Rio de Janeiro. Os índices de P/I e E/I foram categorizados segundo os percentis de três curvas: duas para indivíduos com síndrome de Down e outra para indivíduos saudáveis. Os limites utilizados na categorização foram o percentil 5 (P5) e o percentil 95 (P95). Utilizou-se o Kappa ponderado na avaliação da concordância das classificações (significativo quando p < 0,05).Resultados: Foram obtidas informações de 98 crianças e 40 adolescentes. Entre as crianças, o P/I < P5 variou de 1,0 a 18,4%; a concordância para essa categorização foi considerada fraca (Kappa = 0,16; IC95% -0,03-0,34; p < 0,01); para E/I, não foi observada concordância na classificação. Entre os adolescentes, a categorização do P/I < P5 variou de 2,5 a 5,0%; a concordância para essa classificação foi fraca (Kappa = 0,16; IC95% -0,15-0,48; p > 0,05); para E/I, a concordância foi boa (Kappa = 1,00; IC95% 0,23-1,00; p < 0,01). Conclusão:A concordância entre as classificações dos índices P/I e E/I geradas por diferentes distribuições mostrou-se fraca. Os dados indicam que o desenvolvimento de curvas específicas para indivíduos com síndrome de Down seria útil para a identificação de distúrbios ponderais, como o excesso de peso, que é freqüentemente observado nesse grupo.J Pediatr (Rio J). 2008;84(4):350-356: Avaliação nutricional, crianças, adolescentes, síndrome de Down, antropometria, peso para idade, estatura para idade. AbstractObjective: To compare the agreement between classifications of children and adolescents with Down syndrome (DS) by weight for age (W/A) and height for age (H/A) indexes according to a selection of international reference curves. Methods:A cross-sectional study was carried out of children (2 to 9.9 years old) and adolescents (10 to 17.9 years old) with DS from cities in the state of Rio de Janeiro, Brazil, in 2005. The W/A and H/A indexes were classified according to the percentiles of two curves developed for individuals with Down syndrome and one distribution developed for healthy subjects. The cut-off limits applied for categorization were: below the 5th percentile (< P5) and above the 95th percentile (> 95). The weighted Kappa index was estimated to assess agreement between the classifications (p < 0.05).Results: Information was obtained on 98 children and 40 adolescents. From 1.0 to 18.4% of the children were < P5 for W/A and the agreement for this index was considered weak (Kappa = 0.16; 95%CI -0.03-0.34; p < 0.01) no agreement was observed between the H/A classifications. For adolescents, W/A < P5 varied from 2.5 to 5.0%; and once more there was no agreement for this classification (Kappa = 0.16; 95%CI -0.15-0.48; p > 0.05). There was good agreement f...

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