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Epidemiologia e Serviços de Saúde
versión impresa ISSN 1679-4974versión On-line ISSN 2237-9622
Resumen
BOTELHO, Vivian Hernandez et al. Agreement between measured weight, height and BMI and Web-based self-reported data in participants of the 1993 Pelotas Birth Cohort, Brazil: a cross-sectional validation study. Epidemiol. Serv. Saúde [online]. 2023, vol.32, n.2, e2022590. Epub 17-Jul-2023. ISSN 1679-4974. http://dx.doi.org/10.1590/s2237-96222023000200013.
Objective:
to evaluate the agreement between measured height, weight, and body mass index (BMI) during the 22-year follow-up of the 1993 Pelotas Birth Cohort, state of Rio Grande do Sul, Brazil, and self-reported data during the online follow-up of the coortesnaweb.
Methods:
this was a cross-sectional validation study; agreement was assessed by means of Lin’s concordance correlation coefficient for continuous measures and weighted Kappa for nutritional status; Spearman’s rank correlation coefficient was used to estimate the correlation between measurements.
Results:
a total of 783 participants were included; it could be seen high correlation and high agreement between the measured height (r = 0.966; ρ = 0.966), weight (r = 0.934; ρ = 0.928), and BMI (r = 0.903; ρ = 0.910) and Web-based self-reported data; there was no correlation between mean difference and the time interval between measurements.
Conclusion:
using the Internet to collect self-reported anthropometric measurements is as valid as the traditional method.
Palabras clave : Validation Study; Body Weights and Measures; Body Mass Index; Measurement of Correlation..