articlePublic Health NutritionOct 7, 2009BRONZE OA

Reliability and relative validity of an FFQ for nutrients in the Tehran Lipid and Glucose Study

Research Institute for Endocrine Sciences · National Nutrition and Food Technology Research Institute · +1 more institution

PubMed
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Abstract

Objective

To describe the relative validity and reliability of the FFQ used for assessing nutrient intakes of participants in the Tehran Lipid and Glucose Study (TLGS).

Design

A total of 132 subjects (sixty-one males and seventy-one females) were included in the study. Dietary data were collected monthly by means of twelve 24 h dietary recalls (24hDR). Subjects completed two, 168-item semi-quantitative FFQ. Blood and urine samples were taken every season for measurement of plasma biomarkers and urinary N and K.

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Funding