A multicentre observational study comparing patient reported outcomes to assess reliability of swollen and tender joint assessments and response to certolizumab treatment as compared to clinician assessments in rheumatoid arthritis.

There is a moderate to high level of agreement between clinicians and patient TJC and SJC assessments that suggest it may be a useful option in assessing joints and response in RA. Further evaluation of RA activity tools such as Disease Activity Score of 28 joints, Crohn Disease Activity Index or Simple Disease Activity Index utilizing patient assessments may be worth exploring.