Validation of the 14-item mediterranean diet adherence screener

Abstract

The Mediterranean diet (MedDiet) is suggested as a healthy dietary pattern. 14-point Mediterranean Diet Adherence Screener (MEDAS) questionnaire is a valid and rapid tool to estimate the adherence to the Mediterranean diet. The aim of this study was to assess the validity of the 14-point Mediterranean Diet Adherence Screener in Turkish population. A total of 188 people (%58 females) participated in this study (31.7±10.97 years). Turkish version of the MEDAS questionnaire was applied with 3-day food record, and mean total Mediterranean Diet (MedDiet) score and each of the MedDiet component scores was calculated from both 3-day food records and MEDAS tool. Intra-class correlation coefficient (ICC) was used to evaluate the total score agreement between the two dietary assessment methods, and each of the MedDiet components was estimated using Cohen's kappa. This project was a cross-sectional study. There was good correlation between the food record total MEdDiet score and MEDAS-derived MedDiet score (r=0.750, p<0.001; ICC=0.749, 95% CI 0.679-0.806, p<0.001). Highest concordance was observed for olive oil for cooking (К=0.763), sugar sweetened beverages (К=0.666), sweets, pastries (К=0.753), and sofrito (К=0.796) while the lowest was for fish and seafood (К=0.196). Re-test analysis showed a similar mean total MedDiet score for both administrations of MEDAS. The MEDAS is a valid and reliable tool to assess adherence to the Mediterranean diet in Turkish population.