Self-reported weight and height are valid measures to determine weight status: results from the Brazilian National Health Survey (PNS 2013)

Cadernos de saúde pública
Naiara Ferraz MoreiraPaulo Rogério Melo Rodrigues

Abstract

Self-reported measures have been used to obtain weight and height information in some epidemiological surveys. The validation of such information is necessary to guarantee data quality. This study assessed the validity of self-reported weight and height to determine weight status. Data were obtained in the Brazilian National Health Survey, a Brazilian household-based nationwide survey carried out in 2013. In this survey, 40,366 individuals (aged ≥ 18 years) provided self-reported and measured information about weight and height. Student's paired t-test was used to verify the differences between self-reported and measured data. The agreement between measurements was obtained using the intraclass correlation coefficient (ICC) and Bland-Altman method. To evaluate variations in weight status categorizations, the weighted kappa coefficient and exact agreement were used. Sensitivity and specificity were estimated for the self-reported information to classify overweight and obese individuals. There was high agreement between self-reported and measured weight, height, and body mass index (ICC > 0.88). The mean agreements estimated by the Bland-Altman method were 99.6% for weight and 100.6% for height. The weighted kappa coefficient sho...Continue Reading

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Citations

Mar 19, 2019·International Journal of Epidemiology·Bernardo L HortaUNKNOWN Pelotas Cohorts Study Group
Aug 3, 2019·The Journal of Headache and Pain·Mario Fernando Prieto PeresTimothy J Steiner
Oct 1, 2020·Population Health Metrics·Mariana Santos Felisbino-MendesGustavo Velasquez-Melendez
Nov 12, 2020·Ciência & saúde coletiva·Alexandra Dias MoreiraMariana Santos Felisbino-Mendes
Apr 1, 2021·Translational Behavioral Medicine·Jonathan B BrickerEvan M Forman

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