{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,16]],"date-time":"2026-04-16T03:01:03Z","timestamp":1776308463181,"version":"3.50.1"},"reference-count":45,"publisher":"Cambridge University Press (CUP)","issue":"11","license":[{"start":{"date-parts":[[2021,2,15]],"date-time":"2021-02-15T00:00:00Z","timestamp":1613347200000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":["cambridge.org"],"crossmark-restriction":true},"short-container-title":["Br J Nutr"],"published-print":{"date-parts":[[2021,12,14]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>The Mediterranean Diet Quality Index (KIDMED Index) is frequently used to evaluate adherence to the Mediterranean Dietary Pattern among children and adolescents, through sixteen questions with the associated total score ranging from \u22124 to 12. However, in the authors\u2019 best knowledge, the psychometric properties of this index had not yet been investigated in Portugal. Thus, the main purpose of the present study was to investigate the reproducibility and the validity of the KIDMED Index in a sample of 185 Portuguese adolescents. The reproducibility was tested by comparing the application of the KIDMED Index at two different times (2-week interval), using McNemar test and Kappa statistics. There was moderate agreement (<jats:italic>\u03ba<\/jats:italic><jats:sub><jats:italic>w<\/jats:italic><\/jats:sub>= 0\u00b7591; 95 % CI 0\u00b7485, 0\u00b7696) and no significant change (<jats:italic>P<\/jats:italic>-value = 0\u00b7201) in the KIDMED Index classification, between the two applications. The validity was explored by comparing the results obtained by the KIDMED Index and by the average of 3-d Dietary-Record (DR), using Spearman\u2019s correlation coefficient and Kappa statistics. There was weak correlation (<jats:italic>\u03c1<\/jats:italic>= 0\u00b7317;<jats:italic>P<\/jats:italic>-value &lt; 0\u00b7001) and slight agreement (<jats:italic>\u03ba<\/jats:italic><jats:sub><jats:italic>w<\/jats:italic><\/jats:sub>= 0\u00b7167; 95 % CI 0\u00b7071, 0\u00b7262) between the KIDMED Index classification and the 3-d DR-derived KIDMED score, and moderate correlation (<jats:italic>\u03c1<\/jats:italic>= 0\u00b7423;<jats:italic>P<\/jats:italic>-value &lt; 0\u00b7001) and fair agreement (<jats:italic>\u03ba<\/jats:italic><jats:sub><jats:italic>w<\/jats:italic><\/jats:sub>= 0\u00b7344; 95 % CI 0\u00b7202, 0\u00b7486) between the terciles of the KIDMED Index and the Mediterranean Adequacy Index scores. The results suggested an acceptable reproducibility and validity of the Portuguese version of the KIDMED Index, in alignment with the few studies investigating psychometric properties of this index in other countries.<\/jats:p>","DOI":"10.1017\/s0007114521000532","type":"journal-article","created":{"date-parts":[[2021,2,15]],"date-time":"2021-02-15T07:32:45Z","timestamp":1613374365000},"page":"1737-1748","update-policy":"https:\/\/doi.org\/10.1017\/policypage","source":"Crossref","is-referenced-by-count":27,"title":["Reproducibility and validity of the Mediterranean Diet Quality Index (KIDMED Index) in a sample of Portuguese adolescents"],"prefix":"10.1017","volume":"126","author":[{"given":"Mariana","family":"Rei","sequence":"first","affiliation":[]},{"given":"Milton","family":"Severo","sequence":"additional","affiliation":[]},{"given":"Sara","family":"Rodrigues","sequence":"additional","affiliation":[]}],"member":"56","published-online":{"date-parts":[[2021,2,15]]},"reference":[{"key":"S0007114521000532_ref24","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2753.2010.01434.x"},{"key":"S0007114521000532_ref23","first-page":"51","volume-title":"Alimentaci\u00f3n infantil y juvenil","author":"Serra-Majem","year":"2004"},{"key":"S0007114521000532_ref31","volume-title":"Pesos e Por\u00e7\u00f5es de Alimentos","author":"Goios","year":"2019"},{"key":"S0007114521000532_ref27","first-page":"73","article-title":"Adherencia a la dieta mediterr\u00e1nea en una poblaci\u00f3n escolar colombiana: evaluaci\u00f3n de las propiedades psicom\u00e9tricas del cuestionario KIDMED","volume":"37","author":"Carrillo","year":"2020","journal-title":"Nutr Hosp"},{"key":"S0007114521000532_ref18","first-page":"2390","article-title":"KIDMED test; prevalence of low adherence to the Mediterranean diet in children and young; a systematic review","volume":"32","author":"Cabrera","year":"2015","journal-title":"Nutr Hosp"},{"key":"S0007114521000532_ref43","doi-asserted-by":"crossref","first-page":"43","DOI":"10.4135\/9781446263495","volume-title":"Surveys in Social Research","author":"Vaus","year":"2002"},{"key":"S0007114521000532_ref35","doi-asserted-by":"publisher","DOI":"10.1093\/ptj\/85.3.257"},{"key":"S0007114521000532_ref42","volume-title":"Questionnaire Design: Reproductive Health Epidemiology Series \u2013 Module 4","author":"McDonald","year":"2003"},{"key":"S0007114521000532_ref15","doi-asserted-by":"publisher","DOI":"10.1017\/S1368980009990541"},{"key":"S0007114521000532_ref7","doi-asserted-by":"publisher","DOI":"10.1093\/advances\/nmz041"},{"key":"S0007114521000532_ref3","unstructured":"3. 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