@misc{10481/68426, year = {2021}, url = {http://hdl.handle.net/10481/68426}, abstract = {Reliable tools to evaluate diet are needed, particularly in life periods such as adolescence in which a rapid rate of growth and development occurs. We assessed the biochemical validity of a self-administered food frequency questionnaire (FFQ) in a sample of Spanish male adolescents using carotenoids and vitamin E and D data. We analyzed data from 122 male adolescents aged 15–17 years of the INMA-Granada birth cohort study. Adolescents answered a 104-item FFQ and provided a non-fasting blood sample. Mean daily nutrient intakes and serum concentration were estimated for main carotenoids (lutein-zeaxanthin, β-cryptoxanthin, lycopene, α-carotene and β-carotene), vitamins E and D and also for fruit and vegetable intake. Pearson correlation coefficients (r) and the percentage of agreement (same or adjacent quintiles) between serum vitamin concentrations and energy-adjusted intakes were estimated. Statistically significant correlation coefficients were observed for the total carotenoids (r = 0.40) and specific carotenoids, with the highest correlation observed for lutein–zeaxanthin (r = 0.42) and the lowest for β-carotene (0.23). The correlation coefficient between fruit and vegetable intake and serum carotenoids was 0.29 (higher for vegetable intake, r = 0.33 than for fruit intake, r = 0.19). Low correlations were observed for vitamin E and D. The average percentage of agreement for carotenoids was 55.8%, and lower for vitamin E and D (50% and 41%, respectively). The FFQ may be an acceptable tool for dietary assessment among male adolescents in Spain.}, organization = {Institute of Health Carlos III (ISCIII)}, organization = {Spanish Ministry of Health (FIS 07/0314; PI11/01007)}, organization = {“Fondo Europeo de Desarrollo Regional” (ISCIII/FEDER) for the Miguel Servet Type I Program granted to C. Freire (grant no. CP16/00085)}, organization = {“Instituto de Salud Carlos III/Agencia Estatal de Investigación”, grant number PI18/00825 Project: Dieta y actividad física en embarazo y tras el nacimiento y longitud del telómero en niños y adolescentes: Proyecto TeloDiPA”}, organization = {Unión Europea (FEDER) “Una manera de hacer Europa”}, publisher = {MDPI}, keywords = {Carotenoid intake}, keywords = {Vitamin E}, keywords = {Vitamin D}, keywords = {Fruit and vegetable intake}, keywords = {Food Frequency Questionnaire (FFQ)}, keywords = {Adolescence}, keywords = {Biochemical validity}, keywords = {Nutritional biomarker}, title = {Biochemical Validation of a Self-Administered Food Frequency Questionnaire to Assess Diet Using Carotenoids and Vitamins E and D in Male Adolescents in Spain}, doi = {10.3390/antiox10050750}, author = {Notario Barandiaran, Leyre and Fernández Cabrera, Mariana Fátima and Freire, Carmen}, }