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Cost-effectiveness of high-sensitivity faecal immunochemical test and colonoscopy screening for colorectal cancer
Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för hälso- och sjukvårdsanalys. Linköpings universitet, Medicinska fakulteten.
Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för hälso- och sjukvårdsanalys. Linköpings universitet, Medicinska fakulteten.
Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för hälso- och sjukvårdsanalys. Linköpings universitet, Medicinska fakulteten.
Region Östergötland, Centrum för kirurgi, ortopedi och cancervård, Kirurgiska kliniken ViN. Linköpings universitet, Institutionen för klinisk och experimentell medicin. Linköpings universitet, Medicinska fakulteten.
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2017 (Engelska)Ingår i: British Journal of Surgery, ISSN 0007-1323, E-ISSN 1365-2168, Vol. 104, nr 8, s. 1078-1086Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Background: Colorectal cancer screening can decrease morbidity and mortality. However, there are widespread differences in the implementation of programmes and choice of strategy. The primary objective of this study was to estimate lifelong costs and health outcomes of two of the currently most preferred methods of screening for colorectal cancer: colonoscopy and sensitive faecal immunochemical test (FIT). Methods: A cost-effectiveness analysis of colorectal cancer screening in a Swedish population was performed using a decision analysis model, based on the design of the Screening of Swedish Colons (SCREESCO) study, and data from the published literature and registries. Lifelong cost and effects of colonoscopy once, colonoscopy every 10 years, FIT twice, FIT biennially and no screening were estimated using simulations. Results: For 1000 individuals invited to screening, it was estimated that screening once with colonoscopy yielded 49 more quality-adjusted life-years (QALYs) and a cost saving of (sic)64 800 compared with no screening. Similarly, screening twice with FIT gave 26 more QALYs and a cost saving of (sic)17 600. When the colonoscopic screening was repeated every tenth year, 7 additional QALYs were gained at a cost of (sic)189 400 compared with a single colonoscopy. The additional gain with biennial FIT screening was 25 QALYs at a cost of (sic)154 300 compared with two FITs. Conclusion: All screening strategies were cost-effective compared with no screening. Repeated and single screening strategies with colonoscopy were more cost-effective than FIT when lifelong effects and costs were considered. However, other factors such as patient acceptability of the test and availability of human resources also have to be taken into account.

Ort, förlag, år, upplaga, sidor
WILEY , 2017. Vol. 104, nr 8, s. 1078-1086
Nationell ämneskategori
Hälso- och sjukvårdsorganisation, hälsopolitik och hälsoekonomi
Identifikatorer
URN: urn:nbn:se:liu:diva-139394DOI: 10.1002/bjs.10536ISI: 000403158800015PubMedID: 28561259OAI: oai:DiVA.org:liu-139394DiVA, id: diva2:1135807
Anmärkning

Funding Agencies|SCREESCO; Regionala Cancer-centrum i samverkan; Swedish Cancer Foundation; Karolinska Institute

Tillgänglig från: 2017-08-24 Skapad: 2017-08-24 Senast uppdaterad: 2018-04-16
Ingår i avhandling
1. Health Economic Evaluations of Screening Programs - Applications and Method Improvements
Öppna denna publikation i ny flik eller fönster >>Health Economic Evaluations of Screening Programs - Applications and Method Improvements
2017 (Engelska)Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
Abstract [en]

Screening to detect diseases early is attractive as it can improve the prognosis and decrease costs, but it is often a problematic concept and there are several pitfalls. Many healthy individuals have to be investigated to avoid a disease in a few, which results in a dilemma because to save a few, many are exposed to a procedure that could potentially harm them. Other examples of problems associated with screening are latent diseases and over-treating. The question of optimal design of a screening program is another source of uncertainty for decision-makers, as a screening program may potentially be implemented in very different ways. This highlights the need for structured analyses that weigh benefits against the harms and costs that occur as consequences of the screening.

The aim of this thesis is, therefore, to explore, develop and implement methods for health economic evaluations of screening programs. This is done to identify problems and suggest solutions to improve future evaluations and in extension policy making.

This aim was analysed using decision analytic cost-effectiveness analyses constructed as Markov models. These are well-suited for this task given the sequential management approach where all relevant data are unlikely to come from a single source of evidence. The input data were in this thesis obtained from the published literature and were complemented with data from Swedish registries and the included case studies. The case studies were two different types of screening programs; a program of screening for unknown atrial fibrillation and a program to detect colorectal cancer early. Further, the implementation of treatment with thrombectomy and novel oral anticoagulants were used to illustrate how factors outside the screening program itself have an impact on the evaluations.

As shown by the result of the performed analyses, the major contribution of this thesis was that it provided a simple and systematic approach for the economic evaluation of multiple screening designs to identify an optimal design.

In both the included case studies, the screening was considered costeffective in detecting the disease; unknown atrial fibrillation and colorectal cancer, respectively. Further, the optimal way to implement these screening programs is dependent on the threshold value for cost-effectiveness in the health care sector and the characteristics of the investigated cohort. This is because it is possible to gain increasingly more health benefits by changing the design of the screening program, but that the change in design also results in higher marginal costs. Additionally, changes in the screening setting were shown to be important as they affect the cost-effectiveness of the screening. This implies that flexible modelling with continuously updated models are necessary for an optimal resource allocation.

Ort, förlag, år, upplaga, sidor
Linköping: Linköping University Electronic Press, 2017. s. 84
Serie
Linköping University Medical Dissertations, ISSN 0345-0082 ; 1578
Nationell ämneskategori
Hälso- och sjukvårdsorganisation, hälsopolitik och hälsoekonomi
Identifikatorer
urn:nbn:se:liu:diva-141556 (URN)10.3384/diss.diva-141556 (DOI)9789176854914 (ISBN)
Disputation
2017-10-06, Belladonna, Campus US, Linköping, 13:00 (Engelska)
Opponent
Handledare
Tillgänglig från: 2017-09-29 Skapad: 2017-09-29 Senast uppdaterad: 2017-09-29Bibliografiskt granskad

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Aronsson, MattiasCarlsson, PerLevin, Lars-ÅkeHager, Jakob
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Avdelningen för hälso- och sjukvårdsanalysMedicinska fakultetenKirurgiska kliniken ViNInstitutionen för klinisk och experimentell medicin
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