Carotenoid, tocopherol, and fatty acid biomarkers and dietary intake estimated by using a brief self-administered diet history questionnaire for older Japanese children and adolescents
2009
Okuda, M.(Yamaguchi Univ. (Japan)) | Sasaki, S. | Bando, N. | Hashimoto, M. | Kunitsugu, I. | Sugiyama, S. | Terao, J. | Hobara, T.
We investigated the association between nutrient biomarkers and dietary intake estimated using a brief self-administered dietary history questionnaire (BDHQ) for Japanese children and adolescents. Blood samples were collected from 398 subjects (5th graders of elementary school aged 10-11 y, and 2nd graders of secondary schools aged 13-14 y) randomly selected from among students in Shunan City, Japan, who were then required to answer two questionnaires. Spearman correlations were calculated between dietary intake and the corresponding biomarkers (serum carotenoids, tocopherols, and erythrocyte fatty acids). Correlations with beta-carotene and beta-cryptoxanthin were significant in the 13- and 14-y age group (r=0.220-0.333, p0.030) and the 10- and 11-y age subgroup who answered the questionnaire with assistance (r
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