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Validity of self-reported height and weight in 4808 EPIC–Oxford participants

Published online by Cambridge University Press:  02 January 2007

Elizabeth A Spencer*
Affiliation:
Imperial Cancer Research Fund Cancer Epidemiology Unit, University of OxfordGibson Building, The Radcliffe Infirmary, Oxford OX2 6HE, UK
Paul N Appleby
Affiliation:
Imperial Cancer Research Fund Cancer Epidemiology Unit, University of OxfordGibson Building, The Radcliffe Infirmary, Oxford OX2 6HE, UK
Gwyneth K Davey
Affiliation:
Imperial Cancer Research Fund Cancer Epidemiology Unit, University of OxfordGibson Building, The Radcliffe Infirmary, Oxford OX2 6HE, UK
Timothy J Key
Affiliation:
Imperial Cancer Research Fund Cancer Epidemiology Unit, University of OxfordGibson Building, The Radcliffe Infirmary, Oxford OX2 6HE, UK
*
*Corresponding author: Email l.spencer@icrf.icnet.uk
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Abstract

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Objective:

To assess the validity of self-reported height and weight by comparison with measured height and weight in a sample of middle-aged men and women, and to determine the extent of misclassification of body mass index (BMI) arising from differences between self-reported and measured values.

Design:

Analysis of self-reported and measured height and weight data from participants in the Oxford cohort of the European Prospective Investigation into Cancer and Nutrition (EPIC–Oxford).

Subjects:

Four thousand eight hundred and eight British men and women aged 35–76 years.

Results:

Spearman rank correlations between self-reported and measured height, weight and BMI were high ( r <0.9, P >0.0001 ). Height was overestimated by a mean of 1.23 (95% confidence interval (CI) 1.11–1.34) cm in men and 0.60 (0.51–0.70) cm in women; the extent of overestimation was greater in older men and women, shorter men and heavier women. Weight was underestimated by a mean of 1.85 (1.72–1.99) kg in men and 1.40 (1.31–1.49) kg in women; the extent of underestimation was greater in heavier men and women, but did not vary with age or height. Using standard categories of BMI, 22.4% of men and 18.0% of women were classified incorrectly based on self-reported height and weight. After correcting the self-reported values using predictive equations derived from a 10% sample of subjects, misclassification decreased to 15.2% in men and 13.8% in women.

Conclusions:

Self-reported height and weight data are valid for identifying relationships in epidemiological studies. In analyses where anthropometric factors are the primary variables of interest, measurements in a representative sample of the study population can be used to improve the accuracy of estimates of height, weight and BMI.

Type
Research Article
Copyright
Copyright © CABI Publishing 2002

References

1National Audit Office. Tackling Obesity in England. London: The Stationery Office, 2001.Google Scholar
2Stewart, AL. The reliability and validity of self-reported weight and height. J. Chronic Dis. 1982; 35(4): 295309.CrossRefGoogle ScholarPubMed
3Stunkard, AJ, Albaum, JM. The accuracy of self-reported weights. Am. J. Clin. Nutr. 1981; 34(8): 1593–9.CrossRefGoogle ScholarPubMed
4Weaver, TW, Kushi, LH, McGovern, PG, Potter, JD, Rich, SS, King, RA, Whitbeck, J, Greenstein, J, Sellers, TA. Validation study of self-reported measures of fat distribution. Int. J. Obes. Relat. Metab. Disorders 1996; 20(7): 644–50.Google ScholarPubMed
5Nieto-Garcia, FJ, Bush, TL, Keyl, PM. Body mass definitions of obesity: sensitivity and specificity using self-reported weight and height. Epidemiology 1990; 1(2): 146–52.CrossRefGoogle ScholarPubMed
6Palta, M, Prineas, RJ, Berman, R, Hannan, P. Comparison of self-reported and measured height and weight. Am. J. Epidemiol. 1982; 115(2): 223–30.CrossRefGoogle ScholarPubMed
7Pirie, P, Jacobs, D, Jeffery, R, Hannan, P. Distortion in self-reported height and weight data. J. Am. Diet. Assoc. 1981; 78(6): 601–6.CrossRefGoogle ScholarPubMed
8Rowland, ML. Self reported height and weight. Am. J. Clin. Nutr. 1990; 52: 1125–33.CrossRefGoogle Scholar
9Stata Corporation. Stata Statistical Software: Release 5.0. College Station, TX: Stata Press, 1997.Google Scholar
10Wing, RR, Epstein, LH, Ossip, DJ, LaPorte, RE. Reliability and validity of self-report and observers' estimates of relative weight. Addict. Behav. 1979; 4(2): 133–40.CrossRefGoogle ScholarPubMed
11Giles, E, Hutchinson, DL. Stature- and age-related bias in self-reported stature. J. Forensic Sci. 1991; 36(3): 765–80.CrossRefGoogle ScholarPubMed
12Ziebland, S, Thorogood, M, Fuller, A, Muir, J. Desire for the body normal: body image and discrepancies between self reported and measured height and weight in a British population. J Epidemiol. Community Health 1996; 50(1): 105–6.CrossRefGoogle Scholar
13Millar, WJ. Distribution of body weight and height: comparison of estimates based on self-reported and observed measures. J. Epidemiol. Community Health 1986; 40(4): 319–23.CrossRefGoogle ScholarPubMed
14Rimm, EB, Stampfer, MJ, Colditz, GA, Chute, CG, Litin, LB, Willett, WC. Validity of self-reported waist and hip circumferences in men and women. Epidemiology 1990; 1(6): 466–73.CrossRefGoogle ScholarPubMed