Validation of the Telephone-Administered Version of the Mediterranean Diet Adherence Screener (MEDAS) Questionnaire

• Type: Article in International Scientific Journal
• Date: 2020

Authors

Gregório, Maria João (Author) FCNAUP; Rodrigues, AM (Author) Other; Salvador, C (Author) Other; Dias, SS (Author) Other; de Sousa, RD (Author) Other; Mendes, JM (Author) Other; Coelho, PS (Author) Other; Branco, JC (Author) Other; Lopes, C (Author) Other; Martinez Gonzalez, MA (Author) Other; Graça, Pedro (Author) FCNAUP; Canhao, H (Author) Other

Journal

Title: Nutrients

Vol. 39

ISSN: 2072-6643

Publisher: MDPI

Indexing

ISI Web of Knowledge - 19 Citations

Scopus - 20 Citations

Scientific classification

CORDIS: Health sciences

FOS: Medical and Health sciences

Other information

Authenticus ID: P-00S-603

DOI: 10.3390/nu12051511

Abstract (EN): 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 13