Development and validation of a disease model for postmenopausal osteoporosis
Gauthier, A., Kanis, J.A., Martin, M., Compston, J., Borgstrom, F., Cooper, C., McCloskey, E. and IOF Committee of Scientific Advisors (2011) Development and validation of a disease model for postmenopausal osteoporosis. Osteoporosis International, 22, (3), 771-780. (doi:10.1007/s00198-010-1358-3). (PMID:20700580).
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Summary: This article describes the development of a model for postmenopausal osteoporosis (PMO) based on Swedish data that is easily adaptable to other countries.
Introduction: The aims of the study were to develop and validate a model to describe the current/future burden of PMO in different national settings.
Methods: For validation purposes, the model was developed using Swedish data and provides estimates from 1990. For each year of the study, the “incident cohort” (women experiencing a first osteoporotic fracture) was identified and run through a Markov model using 1-year cycles until 2020. Health states were based on the number of fractures and death. Fracture by site (hip, vertebral, and non-hip non-vertebral) was tracked for each health state. Transition probabilities reflected site-specific risk of death and subsequent fractures. Bone mineral density (BMD) was included as a model output; model inputs included population size and life tables from 1970 to 2020, incidence of fracture, relative risk of subsequent fractures based on prior fracture, relative risk of death following a fracture by site, and BMD by age (mean and standard deviation).
Results: Model predictions averaged across age groups estimated the incidence of hip, vertebral, and other osteoporotic fractures within a 5% margin of error versus published data. In Sweden, the number of osteoporotic fractures is expected to rise by 11.5% between 2009 and 2020, with a shift towards more vertebral fractures and multiple fractures.
Conclusion: The current PMO disease model is easily adaptable to other countries, providing a consistent measure of present and future burden of PMO in different settings.
|Keywords:||bone mineral density, epidemiology, fracture, osteoporosis, t-score|
|Subjects:||R Medicine > RB Pathology
R Medicine > RC Internal medicine
|Divisions:||University Structure - Pre August 2011 > School of Medicine
|Date Deposited:||01 Mar 2011 10:26|
|Last Modified:||02 Mar 2012 12:55|
|Contributors:||Gauthier, A. (Author)
Kanis, J.A. (Author)
Martin, M. (Author)
Compston, J. (Author)
Borgstrom, F. (Author)
Cooper, C. (Author)
McCloskey, E. (Author)
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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