title: [Bone mineral analysis of whole body in 292 normal subjects assessed by dual X-ray absorptiometry].
abstract: 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.
authors.affiliation: Department of Radiology, PUMC Hospital, CAMS and PUMC, Beijing 100730.
authors.forename: M
authors.initials: M
authors.lastname: Qin
authors.forename: W
authors.initials: W
authors.lastname: Yu
authors.forename: L
authors.initials: L
authors.lastname: Xu
authors.forename: J
authors.initials: J
authors.lastname: Tian
authors.forename: X
authors.initials: X
authors.lastname: Xing
mesh_terms: 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