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Validation of weighed records and other methods of dietary assessment using the 24 h urine nitrogen technique and other biological markers

Published online by Cambridge University Press:  09 March 2007

S. A. Bingham
Affiliation:
MRC Dunn Clinical Nutrition Centre, Hills Road, Cambridge CB2 2DH
A. Cassidy
Affiliation:
MRC Dunn Clinical Nutrition Centre, Hills Road, Cambridge CB2 2DH
T. J. Cole
Affiliation:
MRC Dunn Nutrition Unit, Downhams Lane, Milton Road, Cambridge CB4 1XJ
A. Welch
Affiliation:
MRC Dunn Clinical Nutrition Centre, Hills Road, Cambridge CB2 2DH
S. A. Runswick
Affiliation:
MRC Dunn Clinical Nutrition Centre, Hills Road, Cambridge CB2 2DH
A. E. Black
Affiliation:
MRC Dunn Clinical Nutrition Centre, Hills Road, Cambridge CB2 2DH
D. Thurnham
Affiliation:
Human Nutrition Group, Department of Biological and Biomedical Seiences, University of Ulster, Colerarine BT52 1SA
C. Bates
Affiliation:
MRC Dunn Nutrition Unit, Downhams Lane, Milton Road, Cambridge CB4 1XJ
K. T. Khaw
Affiliation:
Clinical Grantology Unit, F & G Block, Addenbrooke's Hospital, Cambridge CB2 2QQ
T. J. A. Key
Affiliation:
Imperial Cancer Research Fund, Cancer Dpidemiology Unit, Gibson Building, The Radcliffe Infirmary, Oxford OX2 6HE
N. E. Day
Affiliation:
Institute of Public Health, University Forvie Site, Robinson Way, Cambridge CB2 2SR
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Abstract

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Results from analysis of 24 h urine collections, verified for completeness with para-amino benzoic acid, and blood samples collected over 1 year were compared with 16 d weighed records of all food consumed collected over the year, and with results from 24 h recalls, food-frequency questionnaires and estimated food records in 160 women. Using the weighed records, individuals were sorted into quintiles of the distribution of the urine N excretion: dietary N intake ratio (UN:DN). UN exceeded DN in the top quintile of this ratio; mean ratio UN:DN = 1·13 Individuals in this top quintile were heavier, had significantly greater body mass indices, were reportedly more restrained eaters, had significantly lower energy intake:basal metabolic rate ratios (EI:BMR), and had correlated ratios of UN:DN and EI:BMR (r - 0·62). Those in the top quintile reported lower intakes of energy and energy-yielding nutrients, Ca, fats, cakes, breakfast cereals, milk and sugars than individuals in the other quintiles but not lower intakes of non-starch polysaccharides, vitamin C, vegetables, potatoes or meat. Correlations between dietary intake from weighed records and 24 h urine K were 0·74 and 0·82, and between dietary vitamin C and β-carotene and plasma vitamin C and β-carotene 0·86 and 0·48. Correlations between dietary N intake from weighed records and 24 h urine excretion were high (0·78–0·87). Those between N from estimated food records and urine N were r 0·60–0·70. Correlations between urine N and 24 h recalls and food-frequency questionnaires were in the order of 0·01 to 0·5. Despite problems of underreporting in overweight individuals in 20% of this sample, weighed records remained the most accurate method of dietary assessment, and only an estimated 7 d diary was able to approach this accuracy.

Type
Dietary assessment and body composition
Copyright
Copyright © The Nutrition Society 1995

References

Bates, C. J. & Cowen, T. D. (1988). Effects of age and dietary vitamin C on the contents of ascorbic acid and acid-soluble thiol in lens and aqueous humour of guinea pigs. Experimental Eye Research 46, 937945.CrossRefGoogle ScholarPubMed
Bingham, S. (1987). The dietary assessment of individuals; methods, accuracy, new techniques and recommendations. Nutrition Abstracts and Reviews 57, 705742.Google Scholar
Bingham, S. & Cummings, J. H. (1983). The use of 4-aminobenzoic acid as a marker to validate the completeness of 24 h urine collections in man. Clinical Science 64, 629635.CrossRefGoogle ScholarPubMed
Bingham, S. & Cummings, J. H. (1985). Urine nitrogen as an independent validatory measure of dietary intake: a study of nitrogen balance in individuals consuming their normal diet. American Journal of Clinical Nutrition 42, 12761289.CrossRefGoogle ScholarPubMed
Bingham, S. A., Gill, C., Welch, A., Day, K., Cassidy, A., Khaw, K. T., Sneyd, M. J., Key, T. J. A., Roe, L. & Day, N. E. (1994). Comparison of dietary assessment methods in nutritional epidemiology: weighed records v. 24 h recalls, food-frequency questionnaires and estimated-diet records. British Journal of Nutrition 72, 619643.CrossRefGoogle ScholarPubMed
Bingham, S., Williams, D. R. R., Cole, T. J., Price, C. P. & Cummings, J. H. (1988). Reference values for analytes of 24-h urine collections known to be complete. Annals of Clinical Biochemistry 25, 610619.CrossRefGoogle ScholarPubMed
Black, A. E., Goldberg, G. R., Jebb, S. A., Livingstone, M. B. E., Cole, T. J. & Prentice, A. M. (1991). Critical evaluation of energy intake data using fundamental principles of energy physiology. 2. Evaluating the results of published surveys. European Journal of Clinical Nutrition 45, 583599.Google ScholarPubMed
Black, A. E., Jebb, S. A., Bingham, S., Runswick, S. & Poppit, S. (1995). The validation of energy and protein intakes by doubly labelled water and 24 h urine N excretion in post obese subjects. Journal of Human Nutrition and Dietetics (In the Press).CrossRefGoogle Scholar
Fuller, N. J., Bates, C. J. & Scott, K. J. (1983). A radioassay for folate in red cells. Clinica Chimica Acta 131, 343348.CrossRefGoogle ScholarPubMed
Garrow, J. (1993). Composition of the body. In Human Nutrition and Dietetics, pp. 1323 [Garrow, J. and James, W. P. T., editors]. Edinburgh: Churchill Livingstone.Google Scholar
Gibson, G. R., Cummings, J. H., MacFarlane, G. T., Allison, C., Segal, I., Voster, H. H. & Walker, A. R. P. (1990). Alternative pathways for hydrogen disposal during fermentation in the human colon. Gut 31, 679683.CrossRefGoogle ScholarPubMed
Goldberg, G. R., Black, A. E., Jebb, S. A., Cole, T. J., Murgatroyd, P. R., Coward, W. A. & Prentice, A. M. (1991). Critical evaluation of energy intake data using fundamental principles of energy physiology. 1. Derivation of cut-off limits to identify under-recording. European Journal of Clinical Nutrition 45, 569581.Google ScholarPubMed
Gregory, J., Foster, K., Tyler, H. & Wiseman, M. (1990). The Dietary and Nutritional Survey of British Adults. London: H.M. Stationery Office.Google Scholar
Hallfrisch, J. (1995). What do people really eat? In Proceedings of the Fifteenth International Congress Of Nutrition, Adelaide (In the Press).Google Scholar
Isaksson, B. (1980). Urinary nitrogen output as a validity test in dietary surveys. American Journal of Clinical Nutrition 33, 45.CrossRefGoogle ScholarPubMed
Le Marchand, L., Wilkens, L. R., Harwood, P. & Cooney, R. V. (1992). Use of breath hydrogen and methane as markers of colonic fermentation in epidemiologic studies: Circadian patterns of excretion. Environmental Health Perspectives 98, 199202.Google ScholarPubMed
Lichtman, S. W., Pisarska, K., Berman, E. R., Pestone, M., Dowling, H., Offenbacher, E., Weisel, H., Heshka, S., Matthews, D. E. & Heymsfield, S. B. (1992). Discrepancy between self-reported and actual caloric intake and exercise in obese subjects. New England Journal of Medicine 327, 18931898.CrossRefGoogle ScholarPubMed
Livingstone, M. B. E., Prentice, A. M., Strain, J. J., Coward, W. A., Black, A. E., Barker, M. E., McKenna, P. G. & Whitehead, R. G. (1990). Accuracy of weighed dietary records in studies of diet and health. British Medical Journal 300, 708712.CrossRefGoogle ScholarPubMed
McKeown, A. (1992). Hydrogen and methane production in man. Industrial Project Report, Coleraine University.Google Scholar
Margolis, S. A. & Davis, T. P. (1988). Stabilization of ascorbic acid in human plasma and its liquid-chromatographic measurement. Clinical Chemistry 34, 22172223.CrossRefGoogle ScholarPubMed
Prentice, A. M., Coward, W. A., Davies, H. L., Murgatroyd, P. R., Black, A. E., Goldberg, G. R., Ashford, J., Sawyer, M. & Whitehead, R. G. (1985). Unexpectedly low levels of energy expenditure in healthy women. Lancet i, 14191422.CrossRefGoogle Scholar
Schoeller, D. A. (1990). How accurate is self-reported dietary energy intake? Nutrition Reviews 49, 373379.Google Scholar
Schofield, W. N., Schofield, C. & James, W. P. T. (1985). Basal metabolic rate. Human Nutrition: Clinical Nutrition 39C, Suppl. 1, 196.Google Scholar
Steen, B., Isaksson, B. & Svanborg, A. (1977). Intake of energy and nutrients and meal habits in 70-year-old males and females in Gothenburg, Sweden. A population study. Acta Medica Scandinavica 611, Suppl., 3986.CrossRefGoogle ScholarPubMed
Stunkard, A. J. & Messick, S. (1985). The three-factor eating questionnaire to measure dietary restraint, disinhibition and hunger. Journal of Psychosomatic Research 29, 7181.CrossRefGoogle ScholarPubMed
Thurnham, D. I., Smith, E. & Flora, P. S. (1988). Concurrent liquid chromatographic assay of retinol, α- tocopherol, β-carotene, α-carotene, lycopene and β-cryptoxanthin in plasma with tocopherol acetate as internal standard. Clinical Chemistry 34, 377381.CrossRefGoogle ScholarPubMed
van Strien, T., Frijters, J. E. R., Bergers, G. P. A. & Defares, P. B. (1986). The Dutch eating behaviour questionnaire for assessment of restrained, emotional, and external eating behaviour. International Journal of Eating Disorders 5, 295315.3.0.CO;2-T>CrossRefGoogle Scholar
Willett, W. (1990). Nutritional Epidemiology. New York: Oxford University Press.Google Scholar
World Health Organization (1985). Energy and Protein Requirements. Technical Report Series no. 724. Geneva: WHO.Google Scholar