The inter-rater agreement of retrospective assessments of adverse events does not improve with two reviewers per patient record

To evaluate the inter-rater agreement of the record review process of the Dutch Adverse Event study, which we aimed to improve by the involvement of two independent physician reviewers per record instead of one including a consensus procedure in case of disagreement.The inter-rater agreement within pairs of physicians (independent review between physician A+B) and between pairs of physicians (independent review between physician A+B and C+D) was...