Inter-rater reliability in performance status assessment between clinicians and patients: a systematic review and meta-analysis.
Ronald ChowCamilla ZimmermannEduardo BrueraJennifer TemelJames ImMichael LockPublished in: BMJ supportive & palliative care (2019)
There is fair to moderate concordance of patient and clinician performance status ratings. Future studies should examine the reasoning behind clinician and patient ratings to better understand discrepancies between ratings.