Skip to main page content
Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
, 135 (2 Pt 1), 182-8

Discrepancies in Pediatric Bone Mineral Density Reference Data: Potential for Misdiagnosis of Osteopenia

Affiliations

Discrepancies in Pediatric Bone Mineral Density Reference Data: Potential for Misdiagnosis of Osteopenia

M B Leonard et al. J Pediatr.

Abstract

Objective: To evaluate published pediatric dual-energy x-ray absorptiometry bone mineral density (BMD) reference data by comparing the diagnostic classification of measured BMD in children at risk for osteopenia as healthy or osteopenic according to reference source.

Study design: Spine BMD was measured in 95 children, ages 9 to 15 years, at risk for osteopenia because of childhood disease. The BMD results were converted to age-specific z scores for each of the 5 reference data sets, and the z -score distributions were compared.

Results: Between 11% and 30% of children were classified as osteopenic (z score < -2.0) depending on the reference data set. The 2 sex-specific reference data sets yielded similar diagnostic classification of boys and girls: 10% of boys and 11% to 16% of girls were osteopenic (P =.4). The 3 sex-nonspecific reference data sets classified 9% to 13% of girls and 24% to 44% of boys as osteopenic; the diagnosis of osteopenia was significantly greater in boys (P <.01).

Conclusions: The use of different published reference data for the assessment of children at risk for osteopenia results in inconsistent diagnostic classification of BMD results. These inconsistencies can be partially attributed to sex-nonspecific reference data that result in misclassification of boys as osteopenic.

Similar articles

See all similar articles

Cited by 34 articles

See all "Cited by" articles

Publication types

Feedback