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Comparison of dietary assessment methods in nutritional epidemiology: weighed records v. 24 h recalls, food-frequency questionnaires and estimated-diet records

Published online by Cambridge University Press:  09 March 2007

S. A. Bingham
Affiliation:
MRC Dunn Clinical Nutrition Centre, 100 Tennis Court Road, Cambridge CB2 lQL
C. Gill
Affiliation:
MRC Biostatistics Unit, Institute of Public Health, University of Cambridge, Forvie Site, Robinson Way, Cambridge CB2 2SR
A. Welch
Affiliation:
MRC Dunn Clinical Nutrition Centre, 100 Tennis Court Road, Cambridge CB2 lQL
K. Day
Affiliation:
MRC Dunn Clinical Nutrition Centre, 100 Tennis Court Road, Cambridge CB2 lQL
A. Cassidy
Affiliation:
MRC Dunn Clinical Nutrition Centre, 100 Tennis Court Road, Cambridge CB2 lQL
K. T. Khaw
Affiliation:
Clinical Gerontology Unit, F & G Block, Addenbrooke's Hospital, Cambridge CB2 2QQ
M. J. Sneyd
Affiliation:
Clinical Gerontology Unit, F & G Block, Addenbrooke's Hospital, Cambridge CB2 2QQ
T. J. A. Key
Affiliation:
Imperial Cancer Research Fund, Cancer Epidemiology Unit, Gibson Building, The Radclife Infirmary, Oxford OX2 6HE
L. Roe
Affiliation:
Imperial Cancer Research Fund, General Practice Research Group, Gibson Building, The Radclife Infirmary, Oxford OX2 6HE
N. E. Day
Affiliation:
MRC Biostatistics Unit, Institute of Public Health, University of Cambridge, Forvie Site, Robinson Way, Cambridge CB2 2SR
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Abstract

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Women (n 160) aged 50 to 65 years were asked to weigh their food for 4 d on four occasions over the period of 1 year, using the PETRA (Portable Electronic Tape Recorded Automatic) scales. Throughout the year, they were asked to complete seven other dietary assessment methods: a simple 24 h recall, a structured 24 h recall with portion size assessments using photographs, two food-frequency questionnaires, a 7 d estimated record or open-ended food diary, a structured food-frequency (menu) record, and a structured food-frequency (menu) record with portion sizes assessed using photographs. Comparisons between the average of the 16 d weighed records and the first presentation of each method indicated that food-frequency questionnaires were not appreciably better at placing individuals in the distribution of habitual diet than 24 h recalls, due partly to inaccuracies in the estimation of frequency of food consumption. With a 7 d estimated record or open-ended food diary, however, individual values of nutrients were most closely associated with those obtained from 16 d weighed records, and there were no significant differences in average food or nutrient intakes.

Information

Type
Comparison of methods of dietary assessment
Copyright
Copyright © The Nutrition Society 1994