Accuracy and reliability of self-measurement of body girths

Lawrence H. Kushi, Susan A. Kaye, Aaron R. Folsom, John T. Soler, Ronald J. Prineas

Research output: Contribution to journalArticle

165 Scopus citations

Abstract

Because body fat distribution has been recognized as a disease risk factor, practical methods for the measurement of body girths are needed. In two groups of postmenopausal women aged 55-69 years in the upper midwestern United States, the authors examined the reliability and accuracy of self-measurement by mail questionnaire of waist, hip, upper arm, wrist and calf girths. intra-class correlations for waist girth were 0.96 when two self-measurements were compared and 0.93 when self-measurement was compared with technician measurement. Other intra-class correlations were at least 0.85 for repeat self-measurements except for wrist, which had an intra-class correlation of 0.66. For comparisons of self-measurement with technician measurement, intra-class correlations ranged from 0.71 for upper arm to 0.96 for hips. There was slight overestimation of waist girths and underestimation of hip girths when self-measurement was compared with technician measurement. Accuracy of self-measurement did not seem to vary according to age or educational status, but for hip, wrist, and calf girths it appeared that self-measurement underestimated technician measurement as girth size increased. For most girths, within-person variation in girth measurement also increased as girth size increased. Overall, girth self-measurement was both repeatable when re-ascertained by mail and accurate when compared with subsequent technician measurement.

Original languageEnglish (US)
Pages (from-to)740-748
Number of pages9
JournalAmerican Journal of Epidemiology
Volume128
Issue number4
StatePublished - Oct 1988
Externally publishedYes

Keywords

  • Adipose tissue
  • Anthropometry
  • Obesity

ASJC Scopus subject areas

  • Geriatrics and Gerontology
  • Epidemiology

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  • Cite this

    Kushi, L. H., Kaye, S. A., Folsom, A. R., Soler, J. T., & Prineas, R. J. (1988). Accuracy and reliability of self-measurement of body girths. American Journal of Epidemiology, 128(4), 740-748.