Comprehensive Health Research Centre (CHRC), NOVA Medical School, UNL, 1099-085 Lisboa, Portugal.
EpiDoC Unit, Centro de Estudos de Doenças Crónicas (CEDOC) da NOVA Medical School, Universidade Nova de Lisboa (NMS/UNL), CEDOC-Campus Sant'Ana, Pólo de Investigação, NMS, UNL, Edifício Amarelo, Rua do Instituto Bacteriológico, n 5, 1150-082 Lisboa, Portugal.
Nutrients. 2020 May 22;12(5):1511. doi: 10.3390/nu12051511.
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 ( = 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, < 0.001; interclass correlation coefficient (ICC) = 0.803, < 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, < 0.001; ICC = 0.639, < 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.
开发并验证了一种 14 项的地中海饮食依从性筛查器（MEDAS）问卷，采用面对面访谈形式，但不采用电话形式。本研究旨在评估 MEDAS 电话版的有效性和可靠性，以及验证 MEDAS 问卷的葡萄牙语版本。一个方便的社区成年人样本（n=224）参与了一个三阶段的调查。首先，经过培训的研究人员通过电话进行 MEDAS 问卷调查。其次，采用半结构式面对面访谈方式进行葡萄牙语版食物频率问卷（FFQ）和 MEDAS 问卷调查。最后，再次通过电话进行 MEDAS 问卷调查。通过多种指标比较电话版 MEDAS 问卷与面对面版。电话版 MEDAS 问卷与面对面版 MEDAS 显著相关（r=0.805，<0.001；组内相关系数 ICC=0.803，<0.001），且一致性较强（k=0.60）。两次电话访谈的 MEDAS 评分显著相关（r=0.661，<0.001；ICC=0.639，<0.001）。MEDAS 评分与 FFQ 衍生的地中海饮食依从性评分之间的总体一致性为 Cohen's k=0.39。葡萄牙语版 MEDAS 的电话版是评估地中海饮食依从性和获取大型基于人群的研究数据的有效工具。
