論文

査読有り
2018年10月5日

The Validity and Reproducibility of Dietary Non-enzymatic Antioxidant Capacity Estimated by Self-administered Food Frequency Questionnaires.

Journal of epidemiology
  • Ikuko Kashino
  • Mauro Serafini
  • Junko Ishihara
  • Tetsuya Mizoue
  • Ayaka Sunami
  • Koutatsu Maruyama
  • Norie Sawada
  • Manami Inoue
  • Akiko Nanri
  • Kayo Kurotani
  • Shamima Akter
  • Motoki Iwasaki
  • Shoichiro Tsugane
  • 全て表示

28
10
開始ページ
428
終了ページ
436
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.2188/jea.JE20170063

BACKGROUND: High dietary non-enzymatic antioxidant capacity (NEAC) has been inversely related to the incidence of degenerative diseases. However, few studies have investigated the validity and reproducibility of dietary NEAC estimated from a food frequency questionnaire (FFQ). We assessed the validity and reproducibility of FFQ-based dietary NEAC against a dietary record (DR). METHODS: Participants were 244 men and 253 women who completed a 28-day DR and FFQs. NEAC for each food item was estimated according to available databases of antioxidant capacity, as measured by ferric reducing-antioxidant power (FRAP), oxygen radical absorbance capacity (ORAC), and total radical-trapping antioxidant parameter (TRAP). Using Spearman's rank correlation coefficients (CCs), we assessed the validity for dietary NEACs from a 28-day DR and a FFQ, and the reproducibility for them from two FFQs administered at a 1-year interval. Additionally, joint classification and the Bland-Altman method were applied to assess agreement between the two methods. RESULTS: Regarding validation, deattenuated CCs for the energy-adjusted overall dietary NEACs between FFQ and DR for FRAP, ORAC, and TRAP were 0.52, 0.54, and 0.52, respectively, for all subjects. Extreme miscategorization rates by joint classification analysis were 2% for FRAP and ORAC and 1% for TRAP. Regarding reproducibility, CCs between the energy-adjusted dietary NEACs from two FFQs were 0.64 for FRAP and 0.65 for ORAC and TRAP. CONCLUSION: The validity and reproducibility of dietary NEAC of total food from the FFQ were moderate. Estimations of dietary NEAC using FFQ would be useful in studying disease relationships by categorizing habitual dietary NEAC.

リンク情報
DOI
https://doi.org/10.2188/jea.JE20170063
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/30012906
PubMed Central
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6143376
ID情報
  • DOI : 10.2188/jea.JE20170063
  • ISSN : 0917-5040
  • PubMed ID : 30012906
  • PubMed Central 記事ID : PMC6143376

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