Validation and calibration of self-reported weight and height from individuals in the city of São Paulo

Revista Brasileira de Epidemiologia

Aline Martins De Carvalho¹  Lívia Gonçalves Piovezan¹  Soraya Sant´ana De Castro Selem¹  Regina Mara Fisberg¹  Dirce Maria Lobo Marchioni¹ 

关键词: Validation studies;    Sensitivity and specificity;    Body weight;    Body height;    Body mass index;    Health surveys;    Estudos de validação;    Sensibilidade e especificidade;    Peso corporal;    Estatura;    Índice de massa corporal;    Inquéritos Epidemiológicos;   

DOI  :  10.1590/1809-4503201400030013

来源: SciELO

【 摘 要 】

Objective:To evaluate the validity of self-reported weight and height measurements among residents of São Paulo, as well as the accuracy of these measurements for determining nutritional status, and to present calibration coefficients.Methods:A cross-sectional, population-based study was performed with a sample of 299 adolescents, adults and elderly of both genders, in São Paulo in 2008. Bland-Altman difference plot and intraclass correlation were used to determine agreement between measured and self-reported parameters. Sensitivity and specificity were assessed for overweight, and calibration coefficients were estimated for correction of weight, height and body mass index data.Results:The intraclass correlation was high between self-reported and measured parameters for weight (r > 0,94) and body mass index (BMI) (r > 0,85). The agreement between measured and self-reported weight, height and BMI was good. Sensibility was > 91% and specificity was > 83%.Conclusion:Self-reported weight measurements can substitute measured parameters in this population, in both genders and in the age groups studied. Self-reported height measurements should be used with caution. Calibration coefficients can be used to adjust self-reported measurements.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License