OMERACT consensus-based operational definition of contextual factors in rheumatology clinical trials: A mixed methods study

Semin Arthritis Rheum. 2021 Jun;51(3):601-606. doi: 10.1016/j.semarthrit.2021.03.013. Epub 2021 Apr 2.

Abstract

Objectives: To develop an operational definition of contextual factors (CF) [1].

Methods: Based on previously conducted interviews, we presented three CF types in a Delphi survey; Effect Modifying -, Outcome Influencing - and Measurement Affecting CFs. Subsequently, a virtual Special Interest Group (SIG) session was held for in depth discussion of Effect Modifying CFs.

Results: Of 161 Delphi participants, 129 (80%) completed both rounds. After two rounds, we reached consensus (≥70% agreeing) for all but two statements. The 45 SIG participants were broadly supportive.

Conclusion: Through consensus we developed an operational definition of CFs, which was well received by OMERACT members.

Keywords: Contextual factors; Delphi survey; Effect modifying contextual factors; Measurement affecting contextual factors; OMERACT; Outcome explaining contextual factors.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Consensus
  • Humans
  • Outcome Assessment, Health Care
  • Research Design
  • Rheumatology*
  • Surveys and Questionnaires