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Epidemiologia e Serviços de Saúde
versión impresa ISSN 1679-4974versión On-line ISSN 2237-9622
Resumen
FREITAS, Patrícia Pinheiro de; MINGOTI, Sueli Aparecida y LOPES, Aline Cristine Souza. Validation of self-reported weight among users of the Belo Horizonte Health Fitness Center Program, Minas Gerais, Brazil, 2017. Epidemiol. Serv. Saúde [online]. 2020, vol.29, n.3, e2019368. Epub 02-Jun-2020. ISSN 1679-4974. http://dx.doi.org/10.5123/s1679-49742020000300010.
Objective
to validate self-reported body weight of Programa Academia da Saúde (PAS) users in Belo Horizonte, MG, Brazil, and to identify factors associated with weight error.
Methods
self-reported body weight, obtained by telephone interview, was compared to measured weight; we used Student’s t-test, ANOVA, Lin’s concordance correlation coefficient, the Bland-Altman method and Kappa coefficient; women’s self-reported weight was corrected according to measured weight using multiple regression.
Results
441 users participated; weight self-reported by men was valid (error=0; p=0.15); overweight classification concordance was 94.3% (Kappa=0.88); errors were greater in the case of self-reported weight by women over 30 years old and overweight women (-0.8kg; error≠0; p<0.01); after correction using multiple regression, self-reported weight validity was satisfactory (error=0; p=0.99).
Conclusion
self-reported weight of men can be used for research and health surveillance, but for women correction is required.
Palabras clave : Body Weight; Validation Study; Health Programs and Plans; Self Report.