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Revista de la Facultad de Medicina

versión impresa ISSN 0120-0011

Resumen

HERRAN, Oscar Fernando  y  ROJAS, Martha Patricia. Lessons learned in a study of reproducibility and validity of questionnaires to estimate dietary intake in Colombia, 2010-2017. rev.fac.med. [online]. 2019, vol.67, n.2, pp.247-255. ISSN 0120-0011.  https://doi.org/10.15446/revfacmed.v67n2.68187.

Introduction:

Dietary exposure is complex to measure and is associated with the development of chronic diseases; therefore, it is necessary to develop and validate simplified instruments for measurement.

Objective:

To establish the classification and validity reproducibility of the 24-hour dietary recall method (24hDR) in food frequency questionnaires (FFQ) developed in Colombia.

Materials and methods:

Diagnostic technology study developed during 2010-2017. Two 24hDR and two FFQs were applied to 523 subjects: 109 in Bogotá D.C., 107 in Medellín, 106 in Cali, 102 in Barranquilla and 99 in Bucaramanga and its metropolitan area. Reproducibility and validity studies were performed using crude Pearson's r coefficients adjusted by residual energy method.

Results:

The reproducibility of 24hDR was poor-moderate (minimum -0.00, maximum 0.72), as was the reproducibility of the questionnaires (minimum -0.01, maximum 0.72). The validity of the questionnaires was poor (minimum -0.01, maximum -0.59).

Conclusion:

FFQs are not useful for epidemiological research, which is explained by the high variability caused by few 24hR recalls in dietary estimation when designing questionnaires, and failures in data collection.

Palabras clave : Diet; Neoplasms; Surveys and Questionnaires; Reproducibility of Results; Colombia (MeSH).

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