Development of the SF-6Dv2 health utility survey: comprehensibility and patient preference

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  • Lynne Broderick
  • Bjørner, Jakob
  • Miranda Lauher-Charest
  • Michelle K. White
  • Mark Kosinski
  • Brendan Mulhern
  • John Brazier

Background: The SF-6Dv2 classification system assesses health states in six domains—physical functioning, role function, bodily pain, vitality, social functioning, and mental health. Scores have previously been derived from the SF-36v2® Health Survey. We aimed to develop a six-item stand-alone SF-6Dv2 Health Utility Survey (SF-6Dv2 HUS) and evaluate its comprehensibility. Methods: Two forms of a stand-alone SF-6Dv2 HUS were developed for evaluation. Form A had 6 questions with 5–6 response choices, while Form B used 6 headings and 5–6 statements describing the health levels within each domain. The two forms were evaluated by 40 participants, recruited from the general population. Participants were randomized to debrief one form of the stand-alone SF-6Dv2 HUS during a 75-min interview, using think-aloud techniques followed by an interviewer-led detailed review. Participants then reviewed the other form of SF-6Dv2 and determined which they preferred. Any issues or confusion with items was recorded, as was as overall preference. Data were analyzed using Microsoft Excel and NVivo Software (v12). Results: Participants were able to easily complete both forms. Participant feedback supported the comprehensibility of the SF-6Dv2 HUS. When comparing forms, 25/40 participants preferred Form A, finding it clearer and easier to answer when presented in question/response format. The numbered questions and underlining of key words in Form A fostered quick and easy comprehension and completion of the survey. However, despite an overall preference for Form A, almost half of participants (n = 19) preferred the physical functioning item in Form B, with more descriptive response choices. Conclusion: The results support using Form A, with modifications to the physical functioning item, as the stand-alone SF-6Dv2 HUS. The stand-alone SF-6Dv2 HUS is brief, easy to administer, and comprehensible to the general population.

OriginalsprogEngelsk
Artikelnummer47
TidsskriftJournal of Patient-Reported Outcomes
Vol/bind6
Udgave nummer1
DOI
StatusUdgivet - 2022

Bibliografisk note

Funding Information:
This study was funded by QualityMetric, which licenses the SF-6Dv2. Permission to reproduce and to use the SF-6Dv2 and the associated trademark(s) is routinely granted royalty-free to individuals and organizations that collect their own data for purposes of scholarly research. Permissions for both scholarly and commercial use can be obtained by completing a License Application Form. All other uses, commercial and noncommercial, may require payment of a license fee. Completion of the License Application Form will result in the quotation of any user fees and, upon user request and approval by QualityMetric, the issuance of a license and invoice. Any organization or individual wishing to reproduce the survey documented herein and/or any associated intellectual property (e.g., the trademarks, scoring algorithms, interpretation guidelines, and/or normative data) for any purpose must register or obtain a license from QualityMetric. For information about registering or obtaining a license, go to www. qualitymetric.com.

Publisher Copyright:
© 2022, The Author(s).

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