Assessment of the validity of a food frequency questionnaire as a measure of food use by comparison with direct observation of domestic food stores

Horwath, Caroline C. and Worsley, Anthony 1990, Assessment of the validity of a food frequency questionnaire as a measure of food use by comparison with direct observation of domestic food stores, American Journal of Epidemiology, vol. 131, no. 6, pp. 1059-1067, doi: 10.1093/oxfordjournals.aje.a115597.

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Title Assessment of the validity of a food frequency questionnaire as a measure of food use by comparison with direct observation of domestic food stores
Author(s) Horwath, Caroline C.
Worsley, AnthonyORCID iD for Worsley, Anthony orcid.org/0000-0002-4635-6059
Journal name American Journal of Epidemiology
Volume number 131
Issue number 6
Start page 1059
End page 1067
Total pages 9
Publisher Oxford University Press (OUP)
Place of publication Cary, N.C.
Publication date 1990-06-01
ISSN 0002-9262
Keyword(s) Aged
Data Collection
Diet Surveys
Epidemiologic Methods
Female
Food
Food Preferences
Humans
Male
Nutrition Surveys
Reproducibility of Results
Sampling Studies
Surveys and Questionnaires
food habits
nutrition
validity of results
self administration
South Australia
ederly
Science & Technology
Life Sciences & Biomedicine
Public, Environmental & Occupational Health
PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH, SCI
Summary The aim of this study was to assess the validity as a measure of food use of a 90-item semi-quantitative food frequency questionnaire which had been used in a study of food consumption patterns and health among 3,000 people aged 65 years and over selected at random from the electoral rolls of Adelaide, South Australia. In 1986, 18 months after the original survey, 200 randomly selected participants were invited to take part in the present study. The food frequency questionnaire was administered by mail, and results were compared with a direct observation of the foods that 40 subjects had in their home. The kappa statistic indicated good agreement (in all cases greater than that expected due to chance) between the reported use of individual foods in the questionnaire and the observed presence or absence of those foods in the subject's home. Correlation coefficients between scores generated from the questionnaire for consumption from specific food groups and those derived from direct observation of domestic food stores ranged from 0.42 to 0.86. These data indicate that a simple self-administered dietary questionnaire can provide a valid measure of food use patterns in elderly people.
Language eng
DOI 10.1093/oxfordjournals.aje.a115597
Field of Research 11 Medical And Health Sciences
01 Mathematical Sciences
HERDC Research category CN.1 Other journal article
Copyright notice ©1990, John Hopkins University School of Hygiene and Public Health
Persistent URL http://hdl.handle.net/10536/DRO/DU:30100170

Document type: Journal Article
Collections: Faculty of Health
School of Exercise and Nutrition Sciences
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