title: Total-body and regional bone mineral content and areal bone mineral density in children aged 8-18 y: the Fels Longitudinal Study.
abstract: BACKGROUND
  Techniques for cross-calibration of bone mineral content (BMC) and bone mineral density (BMD) between manufacturers of dual-energy X-ray absorptiometry (DXA) instruments are currently inadequate for total body measurements. Therefore, manufacturer-specific data for BMC and BMD in children are needed.
  
  
  OBJECTIVE
  We provided age- and sex-specific means and SDs for total-body and regional BMC and areal BMD in 8-18-y-old white children.
  
  
  METHODS
  BMC and BMD of the head, arms, legs, pelvis, spine, and total body were determined by DXA. Data include 465 annual measurements from 148 healthy children with body weights between 30 and 100 kg and statures <190 cm.
  
  
  RESULTS
  There were significant sex differences in BMC at ages 15-18 y for the total body and legs, at ages 12 and 15-18 y for arms and pelvis, at ages 11-13 and 16-18 y for the spine, and at ages 10-11 y for the head. There were significant sex differences in BMD at ages 16-18 y for total body, arms, and legs; at ages 12-13 and 16-18 y for the pelvis; at ages 12-14 and 18 y for the spine; and at ages 13-18 y for the head.
  
  
  CONCLUSIONS
  Data presented in this investigation can be used to compare the BMC and BMD of 8-18-y-old white children (with statures <190 cm and body weights between 30 and 100 kg) using DXA.
authors.affiliation: Department of Community Health, Wright State University School of Medicine, Yellow Springs, OH 45387, USA. lmaynard@discover.wright.edu
authors.forename: L M
authors.initials: LM
authors.lastname: Maynard
authors.forename: S S
authors.initials: SS
authors.lastname: Guo
authors.forename: W C
authors.initials: WC
authors.lastname: Chumlea
authors.forename: A F
authors.initials: AF
authors.lastname: Roche
authors.forename: W A
authors.initials: WA
authors.lastname: Wisemandle
authors.forename: C M
authors.initials: CM
authors.lastname: Zeller
authors.forename: B
authors.initials: B
authors.lastname: Towne
authors.forename: R M
authors.initials: RM
authors.lastname: Siervogel
mesh_terms: D015502:Absorptiometry, Photon; D000293:Adolescent; D001827:Body Height; D001835:Body Weight; D015519:Bone Density; D002648:Child; D005260:Female; D006128:Growth; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D012016:Reference Values; D012727:Sex Characteristics; D044465:White People