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In the first interview of the study, the first application of FFQ was carried out, and blank forms of Dietary Records (DRs) were given. For the validity of the FFQ, a total of 12 d (3 days * 4 weeks) of DR were taken. For the reliability of the FFQ, a test\u2013retest application was made with an interval of 4 weeks. The daily intake means of antioxidant nutrients, omega 3 and total antioxidant capacity data obtained from both the FFQ and DR were calculated, and the concordance between the two methods was evaluated with the Pearson Correlation Coefficient (PCC) and Bland\u2013Altman graphs. The present study was carried out at Ege University \u0130zmir\/Turkey, Department of Ophthalmology, Retina Unit. The study was conducted with individuals aged \u226550 years who suffered from Age-Related Macular Degeneration (<jats:italic>n<\/jats:italic>100, 72\u22c50 \u00b1 8\u22c503 years). The values obtained from the test\u2013retest applications for FFQ reliability were the same. The nutrient intake means obtained from the FFQ were similar or significantly higher than DR (<jats:italic>P<\/jats:italic>&lt; 0\u22c505). In the Bland\u2013Altman graphical approach, the nutrient data were within the limits of agreement, and the PCCs between the two methods were moderately related. Considered together, this FFQ is a suitable tool for determining the dietary intakes of antioxidant nutrients in the Turkish population.<\/jats:p>","DOI":"10.1017\/jns.2023.10","type":"journal-article","created":{"date-parts":[[2023,2,15]],"date-time":"2023-02-15T09:58:14Z","timestamp":1676455094000},"source":"Crossref","is-referenced-by-count":2,"title":["Validity and reliability of food frequency questionnaire used in age-related eye disease studies in Turkish adults"],"prefix":"10.1017","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2516-4071","authenticated-orcid":false,"given":"\u015eerife","family":"Akp\u0131nar","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7930-9910","authenticated-orcid":false,"given":"Eda","family":"K\u00f6ksal","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"56","published-online":{"date-parts":[[2023,2,15]]},"reference":[{"key":"S2048679023000101_ref31","doi-asserted-by":"publisher","DOI":"10.1007\/s10654-013-9798-7"},{"key":"S2048679023000101_ref45","doi-asserted-by":"crossref","first-page":"302","DOI":"10.1016\/j.nut.2010.02.006","article-title":"Validation of a food-frequency questionnaire for Flemish and Italian-native subjects in Belgium: The IMMIDIET study","volume":"27","author":"Van Dongen","year":"2011","journal-title":"Nutrition"},{"key":"S2048679023000101_ref3","doi-asserted-by":"publisher","DOI":"10.1093\/ageing\/afz117"},{"key":"S2048679023000101_ref19","unstructured":"19. 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