Recall Bias in Retrospective Assessment of Preoperative Patient-Reported American Shoulder and Elbow Surgeons Scores in Arthroscopic Rotator Cuff Repair Surgery

Abstract

Retrospectively reported PROs are subject to significant recall bias. Recalled PROs were almost always lower than their prospectively recorded counterparts. Recalled PROs are more likely to be accurate when reported by younger patients, those with a longer duration of symptoms, and those with more severe preoperative conditions.