Validity of self-reported weight and height by high school students in the city of Cordoba city
DOI:
https://doi.org/10.31052/1853.1180.v17.n1.6822Keywords:
adolescent, self report, body mass index, obesity, validityAbstract
Objective: To examine the validity of self-reported weight and height versus their direct measurement for the diagnosis of overweight and obesity in adolescent students in the city of Cordoba.
Methods: A cross-sectional pilot study was carried out with 552 adolescents attending 1st to 3rd year at three high schools. Weight and height were collected through a self administered questionnaire and were measured directly by trained staff. We calculated average differences for weight, height and body mass index (BMI = kg/cm2), and sensitivity specificity and concordance coefficient (k) were analyzed for overweight and obesity diagnosis.
Results: Average self-reported weight was underestimated compared to measured weight, but not self-reported height. Declared BMI was underestimated -0.85 kg/cm2in women and -0.26 kg/cm2 in men. The sensitivity-specificity was 61%-89% to detect overweight, and 80%-98% to diagnose obesity.
Conclusion: The self-reported weight and height underestimated the prevalence ofoverweight but not of obesity.
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Copyright (c) 2014 Escuela de Salud Pública y Ambiente. Facultad de Ciencias Médicas. Universidad Nacional de Córdoba
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