title: Bone mineral density of lumbar spines and proximal femur in the normal northeastern Thai women.
abstract: OBJECTIVE
  To determine reference data for age-matched bone mineral density (BMD) of normal northeastern Thai women.
  
  
  METHODS
  350 northeastern Thai women aged 20-70 years were prospectively studied. After interview, the subjects were examined for BMD of lumbar spines and proximal femur. Mean BMD of each group was determined for each skeletal site. Standard deviation (SD) of BMD in the peak group was calculated to determine BMD cutoff level for diagnosing osteoporosis.
  
  
  RESULTS
  Peak average BMD of lumbar spines was at 40-45 years, whereas peak BMD of proximal femur was at 35-40 years. Mean value of peak BMD of lumbar spines and proximal femur was 1.226 and 1.035 g/cm2, respectively. According to T-score less than -2.5 SD criteria, osteoporosis of lumbar spines and proximal femur was considered when measured BMD was below 0.889 and 0.785 g/cm2, respectively.
  
  
  CONCLUSIONS
  Our study provided the BMD reference data for northeastern Thai women.
authors.affiliation: Department of Obstetrics and Gynecology, Faculty of Medicine, Khon Kaen University, Thailand.
authors.forename: W
authors.initials: W
authors.lastname: Somboonporn
authors.forename: C
authors.initials: C
authors.lastname: Somboonporn
authors.forename: S
authors.initials: S
authors.lastname: Soontrapa
authors.forename: P
authors.initials: P
authors.lastname: Lumbiganon
mesh_terms: D015502:Absorptiometry, Photon; D000328:Adult; D000368:Aged; D000375:Aging / Q000502:physiology*; D015519:Bone Density; D005260:Female; D005269:Femur / Q000502:physiology*; D006801:Humans; D008159:Lumbar Vertebrae / Q000502:physiology*; D008875:Middle Aged; D011446:Prospective Studies; D012016:Reference Values; D013785:Thailand