Abstract
Background
Many Western countries have long-established population-based mammography screening programs. Prior to implementing these programs, decision-analytic modeling was widely used to inform decisions.
Objective
The aim of this study was to perform a systematic review of cost-effectiveness models in breast cancer screening in the general population to analyze their structural and methodological approaches.
Methods
A systematic literature search for health economic models was performed in the electronic databases MEDLINE (Ovid), EMBASE, CRD Databases, Cochrane Library, and EconLit in August 2011 with updates in June 2013, April 2015, and November 2016. To assess studies systematically, a standardized form was applied to extract relevant information that was then summarized in evidence tables.
Results
Thirty-five studies were included; 27 state-transition models were analyzed using cohort (n = 12) and individual-level simulation (n = 15). Twenty-one studies modeled the natural history of breast cancer and predicted mortality as a function of the early detection modality. The models employed different assumptions regarding ductal carcinoma in situ. Thirteen studies performed cost-utility analyses with different sources for utility values, but assumptions were often made about utility weights. Twenty-two models did not report any validation.
Conclusion
State-transition modeling was the most frequently applied analytic approach. Different methods in modeling the progression of ductal carcinoma in situ to invasive cancer were identified because there is currently no agreement on the biological behavior of noninvasive breast cancer. Main weaknesses were the lack of precise utility estimates and insufficient reporting of validation. Sensitivity analyses of assumptions regarding ductal carcinoma in situ and in particular adequate validation are critical to minimize the risk of biased model outcomes.
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Acknowledgements
We thank Jen Manne-Goehler, MD, DSc, Clinical Fellow in Medicine, Harvard Medical School, for reviewing and editing the manuscript for English language. In addition, we would like to thank Tarquin Mittermayr, BA, Information Specialist at Ludwig Boltzmann Institute for Health Technology Assessment, who conducted the literature searches.
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This work was supported in part by the COMET Center ONCOTYROL, which is funded by the Austrian Federal Ministries BMVIT/BMWFJ (via FFG) and the Tiroler Zukunftsstiftung/Standortagentur Tirol (SAT). The funding source had no role in designing the study, interpreting the data, and writing or publishing the manuscript.
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Irmgard Schiller-Frühwirth is an employee of the Main Association of Austrian Social Security Institutions and declares no conflicts of interest. Both authors, Beate Jahn and Uwe Siebert were employed by the sponsor. Marjan Arvandi is an employee of UMIT and declares no conflicts of interest.
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IS-F conceptualized and performed the systematic review and wrote the report. BJ, MA, and US contributed to the study selection. IS-F, BJ, and MA screened for titles and abstracts but screened also the full papers. US determined the outcomes of any disagreements regarding study eligibility. IS-F extracted the data; BJ checked the completeness and accuracy of the extracted study information. The first author coordinated this work and made final decisions. BJ and US reviewed and recommended revisions to the final submitted manuscript.
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Schiller-Frühwirth, I.C., Jahn, B., Arvandi, M. et al. Cost-Effectiveness Models in Breast Cancer Screening in the General Population: A Systematic Review. Appl Health Econ Health Policy 15, 333–351 (2017). https://doi.org/10.1007/s40258-017-0312-3
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DOI: https://doi.org/10.1007/s40258-017-0312-3