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Costs and effect of biennial prostate cancer screening in Sweden: results from a randomized trial in a defined population
Linköping University, Department of Department of Health and Society, Center for Medical Technology Assessment. Linköping University, Faculty of Health Sciences.
Department of Urology, Sahlgrenska Hospital, Gothenburg, Sweden.
Linköping University, Department of Department of Health and Society, Center for Medical Technology Assessment. Linköping University, Faculty of Health Sciences.
Department of Urology, Sahlgrenska Hospital, Gothenburg, Sweden.
(English)Manuscript (preprint) (Other academic)
Abstract [en]

Background: The aim was to estimate the lifetime cost in relation to the extra number of detected localized and potentially curable cancers, and to estimate the economic impact on health care of repeated screening for prostate cancer in Sweden in a cohort of men aged 50-64 years.

Material and Methods: From the total male population in the city of Gothenburg born between 1930-1944 (n=32,298), 10,000 men were randornized to prostate cancer screening beginning in January 1995, and 10,000 men were randomized to serve as a control group. PSA tests were offered every 2nd year until the age of 70. All health care costs for administration of the screening programme, screening tests, diagnostic procedures, and treatments were included. Data on detected cancers were collected from the prospective programme and from patient records. A Markov model was developed to calculate the cost-effectiveness and the total extra cost of the screening programme.

Results: For the period from the start of the screening programme until death, the estimates were 17.7 extra localized cancers per 1,000 men and 7.3 extra cases of curative aimed treatments per 1,000 men. The incremental cost per extra detected localized cancer was calculated at 98,000 SEK, and per cancer with curative aimed treatment the figure was 236,000 SEK. Introducing this screening programme for prostate cancer in Sweden would yield 92 million SEK annually in additional costs for screening and management compared to a non-screening strategy.

Conclusion: Introduction of prostate cancer screening with PSA would increase the total economic burden of prostate cancer for society by approximately 30 percent. Due to the lack of scientific data concerning possible survival benefits from prostate cancer screening, we must wait several years before the true cost-effectiveness of the programme can be calculated.

National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:liu:diva-84229OAI: oai:DiVA.org:liu-84229DiVA: diva2:558254
Available from: 2012-10-02 Created: 2012-10-02 Last updated: 2012-10-02Bibliographically approved
In thesis
1. Economic studies of health technology changes in prostate cancer care
Open this publication in new window or tab >>Economic studies of health technology changes in prostate cancer care
2005 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Introduction: New health technologies are one of the major drivers of increasing health care costs, although not all technologies have been shown to be effective. Initiation of activities for ensuring an appropriate diffusion of new health technologies is therefore an important task for a society. To ensure a choice of relevant policy actions, it is necessary to have knowledge about what factors affect the rate and extent of diffusion and what consequences can be expected from adopting a new health technology.

Aim: The aim of this thesis is to estimate economic consequences and cost-effectiveness of health technology changes and to explore factors affecting the diffusion of health technologies. To elucidate these issues, prostate cancer was used as the subject of study.

Material and Methods: The diffusion of six selected technologies for prostate cancer care was analysed and the economic consequences of these technological changes estimated. Data describing the diffusion and costs were obtained from relevant databases. Economic consequences of technological changes in prostate cancer care were also estimated with a cohort approach using 204 men with a diagnosis of prostate cancer who died in 1997-98. Data on health service utilization were extracted from clinical records and the results were compared with those of corresponding cohorts of men who died in 1984-85 or in 1992-93. The cost-effectiveness and expected economic consequences of introduction of prostate cancer screening in Sweden were estimated based on randomized studies in the city of Norrköping (n=9,171) and in the city of Gothenburg (n=20,000). The potential value of a technological change in the treatment of prostate cancer pain was estimated based on data from 1,156 men with a diagnosis of prostate cancer.

Results: The utilization of all selected technologies has increased over time with the exception of orchiectomy, which shows a decreasing use. The total cost of these technologies has increased from 200 MSEK in 1991 to 600 MSEK in 2002. Classification of radical prostatectomy revealed a profile associated with a slow/limited diffusion, while classification of PSA tests revealed a profile associated with a rapid/extensive diffusion. The total health care costs for prostate cancer in Sweden have increased from 610 MSEK in 1984-85 to 970 MSEK in 1997-98, but the average cost per patient has been nearly stable over time. The incremental cost per extra detected localized cancer in a prostate cancer screening programme was estimated at 168,000 SEK and 98,000 SEK, respectively, and per curative aimed treated cancer at 356,000 SEK and 236,000 SEK. Introducing a screening programme for prostate cancer in Sweden would yield 244 MSEK and 92 MSEK, respectively, in additional costs per year for screening and treatment compared to a non-screening strategy. An optimal treatment that would reduce pain to zero during the whole episode of disease would add on average 0.85 quality-adjusted life-years for every man with prostate cancer. A rough estimate for Sweden is a total expected loss of 4,421 QALYs per year at a monetary value of 840 MSEK.

Conclusions: Many technological changes occur in prostate cancer care and result in cost increases with minor or uncertain health improvements. A number of factors in addition to cost-effectiveness of the technology influence the diffusion. To ensure an appropriate diffusion of health technologies in society, one necessary condition is a system for early identification and assessment of cost-effectiveness and economic consequences. Another is an appropriate use of decision models populated with data from early clinical trials, epidemiology and costs. The combination of assessment of the costs and effects and identification of the diffusion profile of the technology may facilitate the design of relevant policy actions to promote an effective utilization of health technologies.

Place, publisher, year, edition, pages
Linköping: Linköpings universitet, 2005. 110 p.
Series
Linköping University Medical Dissertations, ISSN 0345-0082 ; 889
National Category
Social Sciences
Identifiers
urn:nbn:se:liu:diva-29365 (URN)14689 (Local ID)91-7373-868-9 (ISBN)14689 (Archive number)14689 (OAI)
Public defence
2005-04-29, Berzeliussalen, Universitetssjukhuset, Linköping, 09:00 (Swedish)
Opponent
Available from: 2009-10-09 Created: 2009-10-09 Last updated: 2012-10-02Bibliographically approved

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Sennfält, KarinCarlsson, Per

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