Trends in Psychiatry and Psychotherapy
https://trends.org.br/article/doi/10.1590/2237-6089-2015-0009
Trends in Psychiatry and Psychotherapy
Original Article

Association between inaccurate estimation of body size and obesity in schoolchildren

Associação entre a inacurácia na estimação do tamanho corporal e a obesidade em escolares

Larissa da Cunha Feio Costa; Diego Augusto Santos Silva; Sebastião de Sousa Almeida; Francisco de Assis Guedes de Vasconcelos

http://dx.doi.org/10.1590/2237-6089-2015-0009 Trends Psychiatry Psychother, vol.37, n4, p.220-226, 2015
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Abstract

Objectives: To investigate the prevalence of inaccurate estimation of own body size among Brazilian schoolchildren of both sexes aged 7-10 years, and to test whether overweight/obesity; excess body fat and central obesity are associated with inaccuracy. Methods: Accuracy of body size estimation was assessed using the Figure Rating Scale for Brazilian Children. Multinomial logistic regression was used to analyze associations. Results: The overall prevalence of inaccurate body size estimation was 76%, with 34% of the children underestimating their body size and 42% overestimating their body size. Obesity measured by body mass index was associated with underestimation of body size in both sexes, while central obesity was only associated with overestimation of body size among girls. Conclusions: The results of this study suggest there is a high prevalence of inaccurate body size estimation and that inaccurate estimation is associated with obesity. Accurate estimation of own body size is important among obese schoolchildren because it may be the first step towards adopting healthy lifestyle behaviors.

Keywords

Body image, obesity, child, perception, cross-sectional studies

Resumo

Objetivos: Investigar a prevalência de inacurácia na estimação do tamanho corporal em escolares brasileiros de ambos os sexos com idade entre 7 e 10 anos e testar a associação com o sobrepeso/obesidade, excesso de gordura corporal e obesidade central. Métodos: A acurácia na estimação do tamanho corporal foi avaliada por meio da Escala de Silhuetas Brasileiras para crianças. As análises de associação foram realizadas por meio de regressão logística multinomial. Resultados: A prevalência geral de inacurácia na estimação do tamanho corporal foi de 76%, sendo que 34% das crianças subestimaram seu tamanho corporal e 42% o superestimaram. A obesidade medida por meio do índice de massa corporal foi associada a subestimação do tamanho corporal em ambos os sexos, enquanto que obesidade central se associou com superestimação do tamanho corporal apenas em meninas. Conclusões: Os resultados deste estudo demonstram uma elevada prevalência de inacurácia na estimação do tamanho corporal e sua associação com a obesidade. A acurácia na estimação do tamanho corporal é importante entre escolares obesos, pois pode ser o primeiro passo para a adoção de comportamentos mais saudáveis de vida.

Palavras-chave

Imagem corporal, obesidade, criança, percepção, estudos transversais

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