[Bone mineral analysis of whole body in 292 normal subjects assessed by dual X-ray absorptiometry].
OBJECTIVE
To understand whole body bone mineral changes in normal subjects.


METHODS
Bone mineral was measured by dual X-ray absorptiometry (DXA) in 292 normal subjects aged 10-79, including 152 females and 140 males. They were divided into age-groups by decade.


RESULTS
In males, peak value ages of total bone mineral content(TBMC), total bone mineral density(TBMD), anteroposterior spine BMD(L2-4 BMD) were in the 30-39, 20-39, 20-29 age-groups respectively. In females, they were all in the 30-39 age-group. Peak values of TBMC, TBMD, L2-4BMD were higher in males than those in females. Loss of bone mineral for females was more pronounced than that for males. There was a tendency of increased BMD among the 70-79 age-group for males. Loss of L2-4 BMD was more pronounced than TBMD.


CONCLUSIONS
This study provides the normal bone mineral data of whole body for males and females, and the characteristic of changes.
Qin
M
M
Department of Radiology, PUMC Hospital, CAMS and PUMC, Beijing 100730.
Yu
W
W
Xu
L
L
Tian
J
J
Xing
X
X
D015502:Absorptiometry, Photon; D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D015519:Bone Density; D002648:Child; D005260:Female; D006801:Humans; D008159:Lumbar Vertebrae / Q000502:physiology; D008297:Male; D008875:Middle Aged; D012737:Sex Factors