Outcome Influencing Contextual Factors in Rheumatoid Arthritis: Protocol for a Scoping Review

Background: The Outcome Measures in Rheumatology (OMERACT) Contextual Factor Working Group defines Outcome Influencing Contextual Factors (OI-CFs) as prognostic factors of relevance to longitudinal observational studies (LOS) and hence, potential confounders. The working group aims to select these potential confounders to be collected in all studies to improve interpretation of study results in rheumatology.