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Validation of the Oxford WebQ Online 24-Hour Dietary Questionnaire Using Biomarkers

American journal of epidemiology, 2019-10, Vol.188 (10), p.1858-1867 [Peer Reviewed Journal]

The Author(s) 2019. Published by Oxford University Press on behalf of the Johns Hopkins Bloomberg School of Public Health. ;The Author(s) 2019. Published by Oxford University Press on behalf of the Johns Hopkins Bloomberg School of Public Health. 2019 ;ISSN: 0002-9262 ;EISSN: 1476-6256 ;DOI: 10.1093/aje/kwz165 ;PMID: 31318012

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Title:
Validation of the Oxford WebQ Online 24-Hour Dietary Questionnaire Using Biomarkers
Author: Greenwood, Darren C ; Hardie, Laura J ; Frost, Gary S ; Alwan, Nisreen A ; Bradbury, Kathryn E ; Carter, Michelle ; Elliott, Paul ; Evans, Charlotte E L ; Ford, Heather E ; Hancock, Neil ; Key, Timothy J ; Liu, Bette ; Morris, Michelle A ; Mulla, Umme Z ; Petropoulou, Katerina ; Potter, Gregory D M ; Riboli, Elio ; Young, Heather ; Wark, Petra A ; Cade, Janet E
Subjects: Accelerometers ; Accelerometry ; Adult ; Attenuation ; Biomarkers ; Biomarkers - blood ; Biomarkers - urine ; Blood Proteins - analysis ; Carbon Dioxide - metabolism ; Correlation analysis ; Diet ; Diet - statistics & numerical data ; Diet Surveys - methods ; Dietary Carbohydrates - administration & dosage ; Energy expenditure ; Energy Intake ; Energy Metabolism ; Error analysis ; Error reduction ; Female ; Humans ; Internet ; Interviews as Topic ; London ; Male ; Mental Recall ; Nutrients ; Online Systems ; Oxygen Consumption ; Potassium ; Potassium - blood ; Practice of Epidemiology ; Proteins ; Questionnaires ; Recall ; Reproducibility of Results ; Surveys and Questionnaires
Is Part Of: American journal of epidemiology, 2019-10, Vol.188 (10), p.1858-1867
Description: The Oxford WebQ is an online 24-hour dietary questionnaire that is appropriate for repeated administration in large-scale prospective studies, including the UK Biobank study and the Million Women Study. We compared the performance of the Oxford WebQ and a traditional interviewer-administered multiple-pass 24-hour dietary recall against biomarkers for protein, potassium, and total sugar intake and total energy expenditure estimated by accelerometry. We recruited 160 participants in London, United Kingdom, between 2014 and 2016 and measured their biomarker levels at 3 nonconsecutive time points. The measurement error model simultaneously compared all 3 methods. Attenuation factors for protein, potassium, total sugar, and total energy intakes estimated as the mean of 2 applications of the Oxford WebQ were 0.37, 0.42, 0.45, and 0.31, respectively, with performance improving incrementally for the mean of more measures. Correlation between the mean value from 2 Oxford WebQs and estimated true intakes, reflecting attenuation when intake is categorized or ranked, was 0.47, 0.39, 0.40, and 0.38, respectively, also improving with repeated administration. These correlations were similar to those of the more administratively burdensome interviewer-based recall. Using objective biomarkers as the standard, the Oxford WebQ performs well across key nutrients in comparison with more administratively burdensome interviewer-based 24-hour recalls. Attenuation improves when the average value is taken over repeated administrations, reducing measurement error bias in assessment of diet-disease associations.
Publisher: United States: Oxford Publishing Limited (England)
Language: English
Identifier: ISSN: 0002-9262
EISSN: 1476-6256
DOI: 10.1093/aje/kwz165
PMID: 31318012
Source: GFMER Free Medical Journals
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Validation of the Oxford WebQ Online 24-Hour Dietary Questionnaire Using Biomarkers

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