Comparison of Bone Mineral Density Measured by Dual X-ray, Axial Dual-energy Photon X-ray Absorptiometry and Laser Absorptiometry of Calcaneus

The objective of this study was to validate the use of bonemineral measurements of the calcaneus bone by dual x-rayand laser (oxl) in a cross-sectional study carried out in anosteoporosis clinic. measurements of bone mineral density(bmo) at proximal femur and spine were obtained by dualenergyphoton x-ray absorptiometry (dexa). osteoporosiswas defined by a oexa t-score <-2.5 at the femoral neck orlumbar spine. sensitivity, specificity and kappa statistics foroxl were calculated, assuming the oexa measurement asthe gold-standard. the study included 475 women with amean age of 54± 11.9 years. 15% had osteoporosis while 39%were osteopenic (-2.5