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

Public Health Nutrition - Tập 5 Số 4 - Trang 561-565 - 2002
Elizabeth Spencer1, Paul N. Appleby2, G Davey2, Timothy J. Key2
1Imperial Cancer Research Fund Cancer Epidemiology Unit, University of Oxford, Gibson Building, The Radcliffe Infirmary, UK.
2Imperial Cancer Research Fund, Cancer Epidemiology Unit, University of Oxford, Gibson Building, The Radcliffe Infirmary, Oxford OX2 6HE, UK

Tóm tắt

AbstractObjective: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.

Từ khóa


Tài liệu tham khảo

Weaver, 1996, Validation study of self-reported measures of fat distribution, Int. J. Obes. Relat. Metab. Disorders, 20, 644

Pirie, 1981, Distortion in self-reported height and weight data, J. Am. Diet. Assoc., 78, 601, 10.1016/S0002-8223(21)04886-0

10.1097/00001648-199003000-00011

10.1093/ajcn/34.8.1593

10.1520/JFS13087J

10.1016/0306-4603(79)90047-9

10.1136/jech.40.4.319

2001, Tackling Obesity in England

10.1093/ajcn/52.6.1125

10.1136/jech.50.1.105

1997, Stata Statistical Software: Release 5.0.

10.1016/0021-9681(82)90085-6

10.1093/oxfordjournals.aje.a113294

10.1097/00001648-199011000-00009

Thông tin
Thông tin xuất bản

Public Health Nutrition

Tập 5 Số 4

561-565

Thông tin tác giả