Validity of self-reported weight and height: the Goiânia study, Brazil

To assess the validity of self-reported weight and height at the time of diagnosing obesity, and to identify the sociodemographic and individual characteristics that might be a source of information bias. This was a cross-sectional population-based study carried out in the city of Goiânia in 2001. I...

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Bibliographic Details
Published in:Revista de saúde pública 2006-12, Vol.40 (6), p.1065-1072
Main Authors: Peixoto, Maria do Rosário Gondim, Benício, Maria Helena D'Aquino, Jardim, Paulo César Brandão Veiga
Format: Article
Language:Portuguese
Subjects:
Adult
Age Factors
Bias
Body Height
Body Mass Index
Body Weight
Brazil - epidemiology
Epidemiologic Methods
Female
Humans
Male
Middle Aged
Obesity - diagnosis
Obesity - epidemiology
Reproducibility of Results
Self Concept
Sex Factors
Socioeconomic Factors
Surveys and Questionnaires - standards
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Summary:To assess the validity of self-reported weight and height at the time of diagnosing obesity, and to identify the sociodemographic and individual characteristics that might be a source of information bias. This was a cross-sectional population-based study carried out in the city of Goiânia in 2001. Interviews were conducted with 1,023 individuals aged 20-64 years, in their homes, to collect sociodemographic and self-reported weight and height information. On the same occasion, weight and height measurements were made on these individuals. The mean differences and correlation coefficients between self-reported and measured data were calculated according to age, body mass index (BMI), schooling, income and height. Both the men and women overestimated their heights (p0.05). The behavior of overestimating height was influenced by age, schooling, height and body mass index. Although this index obtained from the self-reported data was underestimated (p
ISSN:0034-8910
DOI:10.1590/S0034-89102006000700015