Reference Case Methods for Expert Elicitation in Health Care Decision Making.
Authors
Claxton, Karl
Taylor, Andrea
Publication Date
2022-02Journal Title
Med Decis Making
ISSN
0272-989X
Publisher
SAGE Publications
Volume
42
Issue
2
Pages
182-193
Language
en
Type
Article
This Version
VoR
Metadata
Show full item recordCitation
Bojke, L., Soares, M. O., Claxton, K., Colson, A., Fox, A., Jackson, C., Jankovic, D., et al. (2022). Reference Case Methods for Expert Elicitation in Health Care Decision Making.. Med Decis Making, 42 (2), 182-193. https://doi.org/10.1177/0272989X211028236
Abstract
BACKGROUND: The evidence used to inform health care decision making (HCDM) is typically uncertain. In these situations, the experience of experts is essential to help decision makers reach a decision. Structured expert elicitation (referred to as elicitation) is a quantitative process to capture experts' beliefs. There is heterogeneity in the existing elicitation methodology used in HCDM, and it is not clear if existing guidelines are appropriate for use in this context. In this article, we seek to establish reference case methods for elicitation to inform HCDM. METHODS: We collated the methods available for elicitation using reviews and critique. In addition, we conducted controlled experiments to test the accuracy of alternative methods. We determined the suitability of the methods choices for use in HCDM according to a predefined set of principles for elicitation in HCDM, which we have also generated. We determined reference case methods for elicitation in HCDM for health technology assessment (HTA). RESULTS: In almost all methods choices available for elicitation, we found a lack of empirical evidence supporting recommendations. Despite this, it is possible to define reference case methods for HTA. The reference methods include a focus on gathering experts with substantive knowledge of the quantities being elicited as opposed to those trained in probability and statistics, eliciting quantities that the expert might observe directly, and individual elicitation of beliefs, rather than solely consensus methods. It is likely that there are additional considerations for decision makers in health care outside of HTA. CONCLUSIONS: The reference case developed here allows the use of different methods, depending on the decision-making setting. Further applied examples of elicitation methods would be useful. Experimental evidence comparing methods should be generated.
Keywords
Original Research Articles, Decision-making, economic-evaluation, Elicitation, uncertainty
Sponsorship
Medical Research Council (MR/N028511/1)
Identifiers
10.1177_0272989x211028236
External DOI: https://doi.org/10.1177/0272989X211028236
This record's URL: https://www.repository.cam.ac.uk/handle/1810/333208
Rights
Licence:
https://creativecommons.org/licenses/by/4.0/
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