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Titolo:
EFFECT OF BONE AREA ON SPINE DENSITY IN CHINESE MEN AND WOMEN IN TAIWAN
Autore:
TSAI KS; CHENG WC; CHEN CK; SANCHEZ TV; SU CT; CHIENG PU; YANG RS;
Indirizzi:
NATL TAIWAN UNIV HOSP,DEPT ORTHOPED,7 CHUNG SHAN S RD TAIPEI 100 TAIWAN NATL TAIWAN UNIV,DEPT LAB MED,COLL MED TAIPEI 10764 TAIWAN NATL TAIWAN UNIV,COLL MED,DEPT RADIOL TAIPEI 10764 TAIWAN NATL TAIWAN UNIV,COLL MED,DEPT ORTHOPED TAIPEI 10764 TAIWAN NORLAND MED SYST FT ATKINSON WI 00000
Titolo Testata:
Bone
fascicolo: 6, volume: 21, anno: 1997,
pagine: 547 - 551
SICI:
8756-3282(1997)21:6<547:EOBAOS>2.0.ZU;2-G
Fonte:
ISI
Lingua:
ENG
Soggetto:
X-RAY ABSORPTIOMETRY; VERTEBRAL BODY SIZE; MINERAL DENSITY; SEX-DIFFERENCES; PHOTON-ABSORPTIOMETRY; COMPUTED-TOMOGRAPHY; LUMBAR SPINE; AGE; DENSITOMETRY; SINGLE;
Keywords:
BONE AREA; BMC; AREAL BMD; BMAD; CHINESE MEN AND WOMEN;
Tipo documento:
Article
Natura:
Periodico
Citazioni:
30
Recensione:
Indirizzi per estratti:
Citazione:
K.S. Tsai et al., "EFFECT OF BONE AREA ON SPINE DENSITY IN CHINESE MEN AND WOMEN IN TAIWAN", Bone, 21(6), 1997, pp. 547-551

Abstract

Areal hone mineral density (BMD), the quotient of bone mineral content (BMC) divided by the projectional bone area (BA), measured with dual-energy X-ray absorptiometers (DXA), is the most common parameter usedtoday to evaluate spinal osteoporosis, To evaluate whether gender, age, weight, and height can determine spinal BA, and to compare BA and analyze its effects on spinal density in the two genders, we measured BA and BMC, and calculated areal BMD, and the bone mineral apparent density (BMAD = BMD/root BA) of the L-2 to L-4 vertebrae of 604 female and 223 male Chinese volunteers from 20 to 70 years of age using a Norland XR-26 DXA. Standardized for height and weight, BA showed a relatively large variation and a significant increase with increasing age in both genders, On the other hand, BMC stayed unchanged in men >50 years of age and decreased with aging in post-menopausal women. Younger men (<51 years) had a much Larger mean BA (by 15.5%) and larger mean BMC (only 10%) than that of age-matched women, As a result, younger men hada slightly and significantly lower areal BMD (by 7.1% and a much lower BMAD (by 16%) (p < 0.0001 for both than premenopausal women of similar age, Men had higher areal BMD and BMAD values than age-matched women only after age 50 years, Although taller body height, heavier weight, and increasing age were associated with a larger BA, these factors could not explain most of the interindividual variations in BA in both genders, Thus anteroposterior BA of lumbar vertebrae measured with DXAseems to affect the areal BMD and BMAD readings in the two genders, The larger Brl caused a low BMAD and probably underestimated the true volumetric spine density in men. (C) 1997 by Elsevier Science Inc. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/11/20 alle ore 00:46:47