Comparability of dietary patterns assessed by multiple dietary assessment methods: results from the 1946 British Cohort

McNaughton, Sarah, Mishra, Gita, Bramwell, Gemma, Paul, Alison and Wadsworth, Mike 2005, Comparability of dietary patterns assessed by multiple dietary assessment methods: results from the 1946 British Cohort, European journal of clinical nutrition, vol. 59, no. 3, pp. 341-352.

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Title Comparability of dietary patterns assessed by multiple dietary assessment methods: results from the 1946 British Cohort
Author(s) McNaughton, Sarah
Mishra, Gita
Bramwell, Gemma
Paul, Alison
Wadsworth, Mike
Journal name European journal of clinical nutrition
Volume number 59
Issue number 3
Start page 341
End page 352
Publisher John Libbey & Co.
Place of publication London, England
Publication date 2005-03
ISSN 0954-3007
1476-5640
Keyword(s) validation
dietary patterns
24-h recall, food dairy
factor analysis
Summary Objective: The aim of this study is to evaluate the consistency of dietary patterns assessed through the use of a dietary recall and a 5-day food diary. Design: Participants (n=2265) of a longitudinal study of health and development completed 48-h dietary recall at interview, followed by a 5-day food diary and with the 24 h immediately preceding the interview analysed separately as a 24-h recall. Mean intakes of foods and nutrients were calculated and dietary patterns were assessed using exploratory factor analysis, using the method of principal components. Paired t-tests and correlation coefficients were used to compare the three dietary assessment methods. Results: Five distinct dietary patterns were identified using the food diary and the 48-h recall but were less consistent on the 24-h recall.  Correlations between factor scores on the 48-h recall and the food diary (r=0.13–0.67) were higher than those between the 24-h recall and food diary (r=-0.01–0.59). The recall methods were effective at ranking subjects according to food and nutrient intakes, with the 48-h recall and food diary showing higher correlations in both males and females. Conclusions: This study indicates that a 48-h recall effectively characterises dietary patterns in British adults when compared to a food diary and ranks participants appropriately with respect to most nutrients and foods and is superior to a single 24-h recall. These results have implications for longitudinal studies where maximising response rates to repeat dietary assessment tools is essential.
Language eng
Field of Research 111199 Nutrition and Dietetics not elsewhere classified
Socio Economic Objective 970111 Expanding Knowledge in the Medical and Health Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2005, Nature Publishing Group
Persistent URL http://hdl.handle.net/10536/DRO/DU:30004122

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