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Total Body Bone Mineral Density in Young Children: Influence of Head Bone Mineral Density
Author(s) -
Taylor Arlene,
Konrad Patricia T.,
Norman Michael E.,
Harcke H. Theodore
Publication year - 1997
Publication title -
journal of bone and mineral research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.882
H-Index - 241
eISSN - 1523-4681
pISSN - 0884-0431
DOI - 10.1359/jbmr.1997.12.4.652
Subject(s) - bone mineral , medicine , dual energy x ray absorptiometry , quantitative computed tomography , nuclear medicine , peak bone mass , bone density , osteoporosis
Dual‐energy X‐ray absorptiometry (DXA) with its short scan time, low radiation dose, and high precision and accuracy have made this technique particularly suitable for measuring total body bone mineral density (TBMD) in children. Other published reports have related TBMD to age in children 2–18 years of age. However, in young normal children aged 2–9 years (51 girls, 43 boys), we found that regression equations for TBMD with age as the predictor did not explain enough of the variance to warrant their use for predicting TBMD (adjusted R 2 0.47, females; 0.41, males). Subtotal BMD (TBMD − head BMD) is predicted better by age because of a possibly invalid adult algorithm for head BMD (adjusted R 2 0.73, females; 0.71, males).