The main objectives are: (1) to examine the available methods for measuring bone density with regard to their ability to measure bone density and to predict future fractures; (2) to assess the situation in Sweden with respect to the patterns of adoption and use of bone density measurement equipment; and, (3) make recommendations about the appropriate applications and use of this technology. More specifically the objectives are: to assess the ability of each technology to measure bone density. The methods considered in this report are single photon absorptiometry (SPA), dual photon absorptiometry (DPA), single x-ray absorptiometry (SXA), dual energy x-ray absorptiometry (DEXA), ultrasound (US), quantitative computed tomography (QCT) and quantitative magnetic resonance (QMR). To assess the ability of bone density measurement to predict future fractures. Selected case control studies and prospective cohort studies are examined for this purpose. To determine the number and types of equipment in Sweden for measuring bone density and the diffusion profile of this technology. To perform a cost analysis and cost effectiveness analysis of bone density measurement to prevent osteoporotic fractures. To make recommendations about the appropriate clinical applications of these technologies related to osteoporosis.