Validity of self-reported body mass and height: relation with sex, age, physical activity, and cardiometabolic risk factors.

Autor:	Teixeira IP; Grupo de Estudos e Pesquisas Epidemiológicas em Atividade Física e Saúde, Escola de Artes, Ciências e Humanidades, Universidade de São Paulo - São Paulo (SP), Brasil., Pereira JL; Grupo de Pesquisa em Avaliação do Consumo Alimentar, Departamento de Nutrição, Faculdade de Saúde Pública, Universidade de São Paulo - São Paulo (SP), Brasil., Barbosa JPDAS; Grupo de Estudos e Pesquisas Epidemiológicas em Atividade Física e Saúde, Escola de Artes, Ciências e Humanidades, Universidade de São Paulo - São Paulo (SP), Brasil., Mello AV; Grupo de Pesquisa em Avaliação do Consumo Alimentar, Departamento de Nutrição, Faculdade de Saúde Pública, Universidade de São Paulo - São Paulo (SP), Brasil., Onita BM; Departamento de Nutrição, Faculdade de Saúde Pública, Universidade de São Paulo - São Paulo (SP), Brasil., Fisberg RM; Grupo de Pesquisa em Avaliação do Consumo Alimentar, Departamento de Nutrição, Faculdade de Saúde Pública, Universidade de São Paulo - São Paulo (SP), Brasil., Florindo AA; Grupo de Estudos e Pesquisas Epidemiológicas em Atividade Física e Saúde, Escola de Artes, Ciências e Humanidades, Universidade de São Paulo - São Paulo (SP), Brasil.
Jazyk:	Portuguese; English
Zdroj:	Revista brasileira de epidemiologia = Brazilian journal of epidemiology [Rev Bras Epidemiol] 2021 Aug 09; Vol. 24, pp. e210043. Date of Electronic Publication: 2021 Aug 09 (Print Publication: 2021).
DOI:	10.1590/1980-549720210043
Abstrakt:	Objective: To evaluate the validity of self-reported body mass and height measurements in adolescents, adults and older adults according to sex, age, leisure-time physical activity level, nutritional status, and cardiometabolic risk factors. Methods: The study included 856 subjects, aged 12 years or older, who participated in the São Paulo Health Survey (ISA-2015) and who had their body mass and height measured and self-reported. Based on the Body Mass Index (BMI), a classification of nutritional status was made according to standardized criteria for each phase of life. The validation of self-reported data was examined by the Intraclass Correlation Coefficient, Bland-Altman and paired T-Test. Linear regression models were used to estimate the calibration coefficients, and sensitivity and specificity tests were performed. Results: Self-reported body mass and height values tend to be very similar to measured values, with a few exceptions. For the adolescents, an underestimation of height was noted, while for the older adults, an overestimation. There was a consistent underestimation of self-reported body mass among women, and an overestimation of BMI among men who practiced less than 150 minutes of physical activity per week during leisure time. The calibration process of self-reported measures made them more consistent with the values measured, increasing the sensitivity in the classification of nutritional status among women and the specificity among men. Conclusions: Self-reported measures of height, body mass and BMI provided valid and reliable measures, presenting a substantial improvement after calibration.
Databáze:	MEDLINE
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