A CHECKLIST FOR REPORTING VALUATION STUDIES OF MULTI-ATTRIBUTE UTILITY-BASED INSTRUMENTS (CREATE)
Method: An expert panel of five members was formed to provide inputs and guidance on the checklist. We followed the international reporting guideline development framework. A list of items was generated based on a systematic literature review of EQ-5D valuation studies. A modified Delphi panel approach was adopted by asking the expert panel via email to assess independently the content validity, completeness, and wording of these items and suggest any additional items if needed. Upon receiving inputs from the expert panel, items were refined. In the next stage, inputs on the checklist were solicited from the members of the EuroQol Research Foundation who were asked to comment on the checklist and assess how important each item is. If an item was classified as “required” by more than 50% of the participants in the survey, the item was included in the second round of deliberation which decided the final version of the checklist.
Result: From an initial list of 35 items, 21 items were selected for final inclusion on the checklist, grouped into 7 sections: (1) descriptive system; (2) health states valued; (3) sampling; (4) preference data collection; (5) study sample; (6) modeling; and (7) scoring algorithm.
Conclusion: The CREATE is aimed to facilitate and promote transparent reporting for valuation studies of MAUIs. This checklist is methodology-oriented and can assist users in their critical appraisal of value sets and help guide research related to the design, execution and reporting of health valuation studies.