title: Development, relative validity, and reliability of a food frequency questionnaire for a case-control study on dietary advanced glycation end products and diabetes complications.
abstract: Dietary advanced glycation end products (dAGEs) could be involved on diabetes complications, yet their quantification is not standardized. The objective of this study was to design a food frequency questionnaire (FFQ) for dAGEs, and to assess its reliability and validity. For the design, data from 30 subjects was used. The final instrument had 90 food items. To measure reliability and validity, 20 participants with type 2 diabetes filled out twice the FFQ (FFQ-T1, FFQ-T2) and 7-day food records (7-dFR). The Shrout-Fleiss coefficient was 0.98 showing good reliability. For validation, the results for the weighted kappa were 0.55 (moderate agreement) for FFQ-T1 and 0.64 (good agreement) for FFQ-T2, and 75% and 80% of subjects respectively were correctly classified into tertiles; Bland-Altman graphics showed no systematic bias. This FFQ is comparable to 7-dFR for measuring dAGEs. To our knowledge, this is the first questionnaire designed to measure specifically dAGEs.
authors.affiliation: Division of Nutritional Sciences and.
authors.forename: Claudia
authors.initials: C
authors.lastname: Luevano-Contreras
authors.forename: Taylor
authors.initials: T
authors.lastname: Durkin
authors.forename: Maria
authors.initials: M
authors.lastname: Pauls
authors.forename: Karen
authors.initials: K
authors.lastname: Chapman-Novakofski
mesh_terms: D000368:Aged; D016022:Case-Control Studies; D048909:Diabetes Complications / Q000209:etiology*; D003924:Diabetes Mellitus, Type 2 / Q000150:complications*; D004032:Diet; D004034:Diet Surveys / Q000592:standards*; D005260:Female; D017127:Glycation End Products, Advanced / Q000008:administration & dosage* / Q000009:adverse effects; D006801:Humans; D008297:Male; D008875:Middle Aged; D015596:Nutrition Assessment; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires / Q000592:standards*
chemical_list: D017127:Glycation End Products, Advanced