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Rev Med Liege. 2009 Dec;64(12):612-9.

[A FRAX model for the assessment of fracture probability in Belgium].

[Article in French]

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Département des Sciences de la Santé Publique, Service de Santé Publique, Epidémiologie et Economie de la Santé, Faculté de Médecine, Université de Liège.


The objective of this study was to evaluate a Belgian version of the WHO fracture risk assessment (FRAX) tool to compute 10-year probabilities of osteoporotic fracture in men and women. A particular aim was to determine fracture probabilities that corresponded to the reimbursement policy for the management of osteoporosis in Belgium and the clinical scenarios that gave equivalent fracture probabilities. Fracture probabilities were computed from published data on the fracture and death hazards in Belgium. Probabilities took account of age, sex, the presence of clinical risk factors and femoral neck BMD. Fracture probabilities were determined that were equivalent to intervention (reimbursement) thresholds currently used in Belgium. Fracture probability increased with age, lower BMI, decreasing BMD T-Score, and all clinical risk factors used alone or combined. The FRAX tool has been used to identify possible thresholds for therapeutic intervention in Belgium, based on equivalence of risk with current guidelines. The FRAX model supports a shift from the current DXA based intervention strategy, towards a strategy based on fracture probability of a major osteoporotic fracture that in turn may improve identification of patients at increased fracture risk. The approach will need to be supported by health economic analyses.

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