Salvador, C. (Clara)

Filtering

20201

Settings

Author search.filters.isAuthorOfPublication.9fbbfe60-0e26-4dcc-90fd-63f0d0212672

Search Results

Now showing 1 - 1 of 1
  • Thumbnail Image
    Validation of the telephone-administered version of the mediterranean diet adherence screener (MEDAS) questionnaire
    (MDPI AG, 2020) Martinez-Gonzalez, M.A. (Miguel Ángel); Branco, J.C. (Jaime C.); Canhão, H. (Helena); Graça, P. (Pedro); Rodrigues, A.M. (Ana M.); Dias, S.S. (Sara S.); Sousa, R.D. (Rute D.) de; Mendes, J.M. (Jorge M.); Gregório, M.J. (Maria Joao); Lopes, C. (Carla); Salvador, C. (Clara); Coelho, P.S. (Pedro S.)
    A 14-Item Mediterranean Diet Adherence Screener (MEDAS) questionnaire was developed and validated in face-to-face interviews, but not via telephone. The aims of this study were to evaluate the validity and reliability of a telephone-administered version of the MEDAS as well as to validate the Portuguese version of the MEDAS questionnaire. A convenience community-based sample of adults (n = 224) participated in a three-stage survey. First, trained researchers administered MEDAS via a telephone. Second, the Portuguese version of Food Frequency Questionnaire (FFQ), and MEDAS were administered in a semi-structured face-to-face interview. Finally, MEDAS was again administered via telephone. The telephone-administered MEDAS questionnaire was compared with the face-to-face-version using several metrics. The telephone-administered MEDAS was significantly correlated with the face-to-face-administered MEDAS [r = 0.805, p < 0.001; interclass correlation coefficient (ICC) = 0.803, p < 0.001] and showed strong agreement (k = 0.60). The MEDAS scores that were obtained in the first and second telephone interviews were significantly correlated (r = 0.661, p < 0.001; ICC = 0.639, p < 0.001). The overall agreement between the Portuguese version of MEDAS and the FFQ-derived Mediterranean diet adherence score had a Cohen’s k = 0.39. The telephone-administered version of MEDAS is a valid tool for assessing the adherence to the Mediterranean diet and acquiring data for large population-based studies.