Reliability of a food frequency questionnaire to assess dietary antioxidant intake

McCarty, Catherine A., De Paola, Caroline, Livingston, Patricia M. and Taylor, Hugh R. 1997, Reliability of a food frequency questionnaire to assess dietary antioxidant intake, Ophthalmic epidemiology, vol. 4, no. 1, pp. 33-39, doi: 10.3109/09286589709058059.

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Title Reliability of a food frequency questionnaire to assess dietary antioxidant intake
Author(s) McCarty, Catherine A.
De Paola, Caroline
Livingston, Patricia M.ORCID iD for Livingston, Patricia M.
Taylor, Hugh R.
Journal name Ophthalmic epidemiology
Volume number 4
Issue number 1
Start page 33
End page 39
Total pages 7
Publisher Taylor & Francis
Place of publication London, Eng.
Publication date 1997
ISSN 0928-6586
Keyword(s) Adult
Aged, 80 and over
Chronic Disease
Eye Disease
Middle Aged
Reproducibility of Results
Retrospective Studies
Surveys and Questionnaires
Summary OBJECTIVE: Epidemiologic evidence of a role for antioxidants in the prevention of chronic disease has been inconclusive, in part due to the difficulty of measuring past diets of free-living populations. The purpose of the current study was to examine the reliability of a 19-item, self-administered, semiquantitative, food frequency questionnaire to assess intake of the major dietary antioxidants. METHODS: Reliability was established by administering the food frequency questionnaire a second time by telephone. The subjects comprised 151 participants in the Melbourne Visual Impairment Project, a study of the distribution and determinants of eye disease in Melbourne residents aged 40 and over. RESULTS: Spearman correlation coefficients ranged from 0.39 for spinach to 0.76 for yoghurt, and all were highly significant (all p = 0.001). The reliability of the instrument was not influenced by gender, English speaking ability, or the number of days between the first and second administration of the questionnaire. CONCLUSION: In conclusion, we have shown this 19-item food frequency questionnaire to be highly reliable. It should be useful for anyone involved in the study of the relationship of dietary antioxidant intake to health outcomes in large populations where limitations of time and money prohibit the collection of more detailed dietary intake information.
Language eng
DOI 10.3109/09286589709058059
Field of Research 1103 Clinical Sciences
1113 Ophthalmology And Optometry
1117 Public Health And Health Services
Socio Economic Objective 920411 Nutrition
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©1997, Taylor & Francis
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