Centre for Policy on Ageing



The role of portion information in the agreement between food frequency questionnaires and food recalls in older women
Author(s)	Mary Jane Laus, Nancy L Cohen, Helen Smiciklas-Wright
Journal title	Journal of Nutrition for the Elderly, vol 18, no 4, 1999
Pages	pp 1-14
Source	http://www.tandfonline.com
Keywords	Nutrition ; Diet ; Food ; Social surveys ; United States of America.
Annotation	Food frequency questionnaires (FFQs) are widely used to estimate usual intake. The authors examined the nutrient agreement between three days of food recall (FR) and FFQ in older women when portion information is used or ignored. When mean values were compared to FR, there was no consistent bias when using or ignoring FFQ portions. The correlation between either FFQ calculation and FR was significant for most nutrients, and 53% of participants in this Pennsylvania, US study were accurately classified into categories of dietary intake; fewer than 10% were grossly misclassified. Thus, omitting portion information from FFQs results in small differences overall in dietary data, as compared to data obtained when portions are used. (RH).
Accession Number	CPA-000221514 A
Classmark	CF: CFD: YP: 3F: 7T
Data © Centre for Policy on Ageing

...from the Ageinfo database published by Centre for Policy on Ageing.