The prediction of height by armspan in older Chinese people
- 1 January 2002
- journal article
- research article
- Published by Taylor & Francis in Annals of Human Biology
- Vol. 29 (6), 649-656
- https://doi.org/10.1080/03014460210151732
Abstract
To compare the accuracy of the predictive equations derived from older Chinese people without vertebral deformity with those derived from unselected older people, in estimating height from armspan. Height and armspan were measured in 789 older Chinese and 885 young Chinese in Hong Kong. All the older subjects had spinal X-ray (T4 to L4). Vertebral deformity was determined by a trained technician using a translucent digital analyser. Definite deformity was defined by a greater than 3 standard deviation increase in one of the three vertebral height ratios (anterior/posterior, middle/posterior and posterior/posterior). Eighty of the older subjects without vertebral deformity were randomly selected from the studied population for internal validation of predictive equations. The remaining subjects were used to derive sex-specific predictive equations for height by linear regression against armspan. The accuracy of these equations was analysed by the Bland and Altman method. Vertebral deformity was present in 30.7% and 15.6% of older female and male subjects, respectively. Older women without vertebral deformity had significantly greater armspan: height ratio when compared with the young (1.04 versus 1.02), but the corresponding ratios were the same in older and young men (both 1.04). The predictive equation derived from older females without vertebral deformity had lower standard error of estimation and gave estimates closer to measured height than those derived from unselected older women. But this was not the case in older men. In deriving predictive equation to estimate height by armspan in older Chinese women, selecting out older women without vertebral deformity increased accuracy of the equation. This was, however, not the case in older men.Keywords
This publication has 12 references indexed in Scilit:
- Influence of age and gender on thoracic vertebral body shape and disc degeneration: an MR investigation of 169 casesJournal of Anatomy, 2000
- Vertebral Deformity in Chinese Men: Prevalence, Risk Factors, Bone Mineral Density, and Body Composition MeasurementsCalcified Tissue International, 2000
- Interpreting Spirometric DataChest, 1999
- Can We Predict Body Height from Segmental Bone Length Measurements? A Study of 3,647 ChildrenJournal of Pediatric Orthopaedics, 1998
- Normal ranges for vertebral height ratios and prevalence of vertebral fracture in hong kong chinese: A comparison with American caucasiansJournal of Bone and Mineral Research, 1996
- The radiological assessment of vertebral osteoporosisBone, 1992
- The Use of Armspan in Nutritional Assessment of the ElderlyJournal of the American Geriatrics Society, 1991
- Lumbar Disc DegenerationSpine, 1988
- STATISTICAL METHODS FOR ASSESSING AGREEMENT BETWEEN TWO METHODS OF CLINICAL MEASUREMENTThe Lancet, 1986
- Estimating Stature from Knee Height for Persons 60 to 90 Years of AgeJournal of the American Geriatrics Society, 1985