Delphi Procedure In Core Outcome Set Development: Rating Scale And Consensus Criteria Determined Outcome SelectionShow others and affiliations
2019 (English)In: Journal of Clinical Epidemiology, ISSN 0895-4356, E-ISSN 1878-5921, Vol. 111, p. 23-31Article in journal (Refereed) Published
Abstract [en]
OBJECTIVE: To compare two different rating scales within one Delphi study for defining consensus in core outcome set development and to explore the influence of consensus criteria on the outcome selection.
STUDY DESIGN: Randomized controlled parallel group trial with 1:1 allocation within the first Delphi round of the Core Outcome Set in the Incontinence-Associated Dermatitis (CONSIDER) project. Outcomes were rated on a three-point or nine-point Likert scale. Decisions about which outcomes to retain were determined by commonly used consensus criteria (i.e., (combinations of) proportions with restricted ranges, central tendency within a specific range and decrease in variance).
RESULTS: Fifty-seven participants (group 1=28, group 2=29) rated 58 outcomes. The use of the nine-point scale resulted in almost twice as many outcomes being rated as 'critical' compared to the three-point scale (24 versus 13). Stricter criteria and combining criteria led to less outcomes being identified as 'critical'.
CONCLUSION: The format of rating scales in Delphi studies for core outcome set development and the definition of the consensus criteria influence outcome selection. The use of the nine-point scale might be recommended to inform the consensus process for a subsequent rating or face-to-face meeting. The three-point scale might be preferred when determining final consensus.
Place, publisher, year, edition, pages
Elsevier, 2019. Vol. 111, p. 23-31
Keywords [en]
Delphi-procedure, consensus, core outcome set, criteria, dermatology, incontinence-associated dermatitis
National Category
Dermatology and Venereal Diseases
Identifiers
URN: urn:nbn:se:oru:diva-73423DOI: 10.1016/j.jclinepi.2019.03.011ISI: 000472124400004PubMedID: 30922885Scopus ID: 2-s2.0-85064259913OAI: oai:DiVA.org:oru-73423DiVA, id: diva2:1302440
Note
Funding Agency:
Ghent University Special Research Fund
2019-04-042019-04-042019-08-08Bibliographically approved