Exclusion criteria in national health state valuation studies : a systematic review

Engel, Lidia, Bansback, Nick, Bryan, Stirling, Doyle-Waters, Mary M and Whitehurst, David GT 2016, Exclusion criteria in national health state valuation studies : a systematic review, Medical decision making, vol. 36, no. 7, pp. 798-810, doi: 10.1177/0272989X15595365.

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Title Exclusion criteria in national health state valuation studies : a systematic review
Author(s) Engel, LidiaORCID iD for Engel, Lidia orcid.org/0000-0002-7959-3149
Bansback, Nick
Bryan, Stirling
Doyle-Waters, Mary M
Whitehurst, David GT
Journal name Medical decision making
Volume number 36
Issue number 7
Start page 798
End page 810
Total pages 13
Publisher SAGE Publications
Place of publication Thousand Oaks, Calif.
Publication date 2016-10
ISSN 1552-681X
Keyword(s) exclusion criteria
health state valuation
preference-based measures
quality-adjusted life year
Summary BACKGROUND: Health state valuation data are often excluded from studies that aim to provide a nationally representative set of values for preference-based health-related quality of life (HRQoL) instruments. The purpose was to provide a systematic examination of exclusion criteria used in the derivation of societal scoring algorithms for preference-based HRQoL instruments. METHODS: Data sources included MEDLINE, official instrument websites, and publication reference lists. Analyses that used data from national valuation studies and reported a scoring algorithm for a generic preference-based HRQoL instrument were included. Data extraction included exclusion criteria and associated justifications, exclusion rates, the characteristics of excluded respondents, and analyses that explored consequential implications of exclusion criteria on the respective national tariff. RESULTS: Seventy-six analyses (from 70 papers) met the inclusion criteria. In addition to being excluded for logical inconsistencies, respondents were often excluded if they valued fewer than 3 health states or if they gave the same value to all health states. Numerous other exclusion criteria were identified, with varying degrees of justification, often based on an assumption that respondents did not understand the task or as a consequence of the chosen statistical modeling techniques. Rates of exclusion ranged from 0% to 65%, with excluded respondents more likely to be older, less educated, and less healthy. Limitations included that the database search was confined to MEDLINE; study selection focused on national valuation studies that used standard gamble, time tradeoff, and/or visual analog scale techniques; and only English-language studies were included. CONCLUSION: Exclusion criteria used in national valuation studies vary considerably. Further consideration is necessary in this important and influential area of research, from the design stage to the reporting of results.
Language eng
DOI 10.1177/0272989X15595365
Field of Research 111799 Public Health and Health Services not elsewhere classified
1117 Public Health And Health Services
1402 Applied Economics
Socio Economic Objective 920499 Public Health (excl. Specific Population Health) not elsewhere classified
HERDC Research category C1.1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2015, The Author(s)
Persistent URL http://hdl.handle.net/10536/DRO/DU:30088462

Document type: Journal Article
Collections: Faculty of Health
School of Health and Social Development
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