The British Journal of Radiology, Vol 70, Issue 840 1245-1251, Copyright © 1997 by British Institute of Radiology

ARTICLES

A suggested methodology for the construction of national bone densitometry reference ranges: 1372 Caucasian women from four UK sites

JG Truscott, DS Simpson and JN Fordham
Centre for Bone and Body Composition Research, University of Leeds, General Infirmary, UK.

This paper presents a simple methodology for combining bone densitometry data from different sites in the UK, having instruments from the same manufacturer (LUNAR Radiation). Additive normalization factors were used on all data prior to inclusion in a reference database which ultimately included data on 1372 Caucasian women, aged 20-70 years, of whom 749 were post-menopausal. Reference data for spine (L2-L4) and femoral neck bone mineral density are given in tabular form as 3 year moving averages for: (1) all women; (2) perimenopausal women grouped by menopausal status; and (3) post-menopausal women with respect to years since menopause. These data may be used to construct Z-score. T-score or percentile reporting ranges and may be adopted as the core for a UK reference range.

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