Labeled versus unlabeled discrete choice experiments in health economics: an application to colorectal cancer screening

Value in Health : the Journal of the International Society for Pharmacoeconomics and Outcomes Research
Esther W de Bekker-GrobEwout W Steyerberg

Abstract

Discrete choice experiments (DCEs) in health economics commonly present choice sets in an unlabeled form. Labeled choice sets are less abstract and may increase the validity of the results. We empirically compared the feasibility, respondents' trading behavior, and convergent validity between a labeled and an unlabeled DCE for colorectal cancer (CRC) screening programs in The Netherlands. A labeled DCE version presented CRC screening test alternatives as "fecal occult blood test,"sigmoidoscopy," and "colonoscopy," whereas the unlabeled DCE version presented them as "screening test A" and "screening test B." Questionnaires were sent to participants and nonparticipants in CRC screening. Total response rate was 276 (39%) out of 712 and 1033 (46%) out of 2267 for unlabeled and labeled DCEs, respectively (P<0.001). The labels played a significant role in individual choices; approximately 22% of subjects had dominant preferences for screening test labels. The convergent validity was modest to low (participants in CRC screening: r=0.54; P=0.01; nonparticipants: r=0.17; P=0.45) largely because of different preferences for screening frequency. This study provides important insights in the feasibility and difference in results from label...Continue Reading

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Citations

Mar 20, 2014·BMC Medical Informatics and Decision Making·Catharina G M Groothuis-OudshoornMaarten J Ijzerman
Jan 17, 2016·Health Economics·Fern Terris-PrestholtPeter Vickerman
Apr 4, 2015·Expert Review of Pharmacoeconomics & Outcomes Research·Ben Fm WijnenMickael Hiligsmann
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Jan 24, 2020·Diabetes Technology & Therapeutics·Rachael L DiSantostefanoCarol Mansfield
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