PMID- 30012906
OWN - NLM
STAT- MEDLINE
DCOM- 20181220
LR  - 20181220
IS  - 1349-9092 (Electronic)
IS  - 0917-5040 (Print)
IS  - 0917-5040 (Linking)
VI  - 28
IP  - 10
DP  - 2018 Oct 5
TI  - The Validity and Reproducibility of Dietary Non-enzymatic Antioxidant Capacity 
      Estimated by Self-administered Food Frequency Questionnaires.
PG  - 428-436
LID - 10.2188/jea.JE20170063 [doi]
AB  - 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.
FAU - Kashino, Ikuko
AU  - Kashino I
AUID- ORCID: 0000-0002-4273-9036
AD  - Department of Epidemiology and Prevention, Center for Clinical Sciences, National 
      Center for Global Health and Medicine.
FAU - Serafini, Mauro
AU  - Serafini M
AD  - Functional Foods and Metabolic Stress Prevention Laboratory, Bioscience and 
      Technology for Food, Agriculture and Environment, University of Teramo.
FAU - Ishihara, Junko
AU  - Ishihara J
AD  - Department of Nutrition Management, Sagami Women's University.
FAU - Mizoue, Tetsuya
AU  - Mizoue T
AD  - Department of Epidemiology and Prevention, Center for Clinical Sciences, National 
      Center for Global Health and Medicine.
FAU - Sunami, Ayaka
AU  - Sunami A
AUID- ORCID: 0000-0003-3954-8615
AD  - Epidemiology and Prevention Division, Research Center for Cancer Prevention and 
      Screening, National Cancer Center.
FAU - Maruyama, Koutatsu
AU  - Maruyama K
AUID- ORCID: 0000-0002-7862-7693
AD  - Department of Public Health, Juntendo University Graduate School of Medicine.
FAU - Sawada, Norie
AU  - Sawada N
AUID- ORCID: 0000-0002-9936-1476
AD  - Epidemiology and Prevention Division, Research Center for Cancer Prevention and 
      Screening, National Cancer Center.
FAU - Inoue, Manami
AU  - Inoue M
AUID- ORCID: 0000-0003-1276-2398
AD  - Epidemiology and Prevention Division, Research Center for Cancer Prevention and 
      Screening, National Cancer Center.
AD  - AXA Department of Health and Human Security, Graduate School of Medicine, the 
      University of Tokyo.
FAU - Nanri, Akiko
AU  - Nanri A
AD  - Department of Epidemiology and Prevention, Center for Clinical Sciences, National 
      Center for Global Health and Medicine.
FAU - Kurotani, Kayo
AU  - Kurotani K
AUID- ORCID: 0000-0002-0109-6046
AD  - Department of Epidemiology and Prevention, Center for Clinical Sciences, National 
      Center for Global Health and Medicine.
AD  - Department of Nutritional Education, National Institute of Health and Nutrition.
FAU - Akter, Shamima
AU  - Akter S
AD  - Department of Epidemiology and Prevention, Center for Clinical Sciences, National 
      Center for Global Health and Medicine.
FAU - Iwasaki, Motoki
AU  - Iwasaki M
AD  - Epidemiology and Prevention Division, Research Center for Cancer Prevention and 
      Screening, National Cancer Center.
FAU - Tsugane, Shoichiro
AU  - Tsugane S
AUID- ORCID: 0000-0003-4105-2774
AD  - Epidemiology and Prevention Division, Research Center for Cancer Prevention and 
      Screening, National Cancer Center.
LA  - eng
PT  - Journal Article
DEP - 20180714
PL  - Japan
TA  - J Epidemiol
JT  - Journal of epidemiology
JID - 9607688
RN  - 0 (Antioxidants)
SB  - IM
MH  - Antioxidants/*administration & dosage
MH  - Diet/*statistics & numerical data
MH  - *Diet Surveys
MH  - Female
MH  - Humans
MH  - Male
MH  - Middle Aged
MH  - Reproducibility of Results
PMC - PMC6143376
OTO - NOTNLM
OT  - FRAP
OT  - ORAC
OT  - dietary assessment
OT  - human
OT  - non-enzymatic antioxidant capacity
EDAT- 2018/07/18 06:00
MHDA- 2018/12/21 06:00
PMCR- 2018/10/05
CRDT- 2018/07/18 06:00
PHST- 2018/07/18 06:00 [pubmed]
PHST- 2018/12/21 06:00 [medline]
PHST- 2018/07/18 06:00 [entrez]
PHST- 2018/10/05 00:00 [pmc-release]
AID - JE20170063 [pii]
AID - 10.2188/jea.JE20170063 [doi]
PST - ppublish
SO  - J Epidemiol. 2018 Oct 5;28(10):428-436. doi: 10.2188/jea.JE20170063. Epub 2018 
      Jul 14.