1. Biomarker-based validity of a food frequency questionnaire estimating intake in Brazilian children and adolescents.
- Author
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Hillesheim, Elaine, Toffano, Roseli Borges Donegá, Barros, Tamiris Trevisan de, Salomão, Roberta Garcia, Mathias, Mariana Giaretta, Coelho-Landell, Carolina de Almeida, Almada, Maria Olímpia Ribeiro do Vale, Camarneiro, Joyce Moraes, Camelo-Junior, José Simon, Ued, Fábio da Veiga, Campos-Gimenez, Esther, Redeuil, Karine, Giner, Maria Pilar, Martin, Francois-Pierre, Montoliu, Ivan, Moco, Sofia, Kaput, Jim, and Monteiro, Jacqueline Pontes
- Subjects
BRAZILIANS ,NICOTINAMIDE ,TEENAGERS ,ERYTHROCYTES ,BLOOD plasma ,VITAMINS ,BETA carotene ,SURVEYS ,QUESTIONNAIRES ,FOLIC acid - Abstract
This study evaluated the validity of nutrient and food group intakes estimated by an FFQ against biomarkers. A 71-item semiquantitative FFQ was administered to 210 Brazilian children and adolescents aged 9-13 years. Intakes were correlated with biomarkers in plasma and red blood cells. Correlations between nutrients and their biomarkers were presented for animal protein, myristic acid (C14:0), EPA, DHA, β-carotene, folate, and vitamins B3, B5 and B6. Food groups and biomarkers were correlated as follows: fish products with EPA and DHA; milk and dairy with C14:0, pyridoxal 5'-phosphate and vitamin B12; total vegetables and dark green and orange vegetables with β-carotene; 5-methyltetrahydrofolate with green vegetables; and flour products with para-aminobenzoylglutamic acid. This FFQ is a valid tool for ranking Brazilian children and adolescents according to their intake of several nutrients and food groups. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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