Comparison of Rating Scale, Time Tradeoff, and Conjoint Analysis Methods for Assessment of Preferences in Prostate Cancer

Robert M. Kaplan, Catherine M. Crespi, Ely Dahan, Josemanuel D. Saucedo, Casey Pagan and Christopher S. Saigal
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Robert M. Kaplan: Clinical Excellence Research Center, Department of Medicine, Stanford University, Stanford, CA USA
Catherine M. Crespi: Department of Biostatistics, Fielding School of Public Health, University of California, Los Angeles, CA, USA
Ely Dahan: deceased
Josemanuel D. Saucedo: Department of Urology, UCLA David Geffen School of Medicine, Los Angeles, CA, USA
Casey Pagan: Department of Urology, UCLA David Geffen School of Medicine, Los Angeles, CA, USA
Christopher S. Saigal: Department of Urology, UCLA David Geffen School of Medicine, Los Angeles, CA, USA

Medical Decision Making, 2019, vol. 39, issue 7, 816-826

Abstract: Background . Conjoint analysis is widely used in studies of consumer preference but has only recently been applied to measure patient utilities for health outcomes. We compared the reliability, feasibility, and internal and predictive validity of conjoint scaling methods against better established rating scale and time tradeoff methods for assessing prostate cancer utilities in men at risk for prostate cancer. Methods . In total, 194 men who were biopsy negative for prostate cancer were randomly assigned to complete 2 preference assessment modules, either conjoint analysis and a rating scale module or conjoint analysis and a time tradeoff module. Each participant’s most important attribute was identified and evaluated in relation to age group (age

Keywords: conjoint analysis; medical decision making; prostate cancer; ratings scales; time tradeoff; utility assessment (search for similar items in EconPapers)
Date: 2019
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Persistent link: https://EconPapers.repec.org/RePEc:sae:medema:v:39:y:2019:i:7:p:816-826

DOI: 10.1177/0272989X19873667

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