Hindsight bias critically impacts on clinicians’ assessment of care quality in retrospective case note review (January 2019)

Summary

Hindsight bias (colloquially known as ‘the retrospectoscope’) is the tendency to perceive past events as more predictable than they actually were. It has been shown to play a significant role in the evaluation of an past event, and has been demonstrated in both medical and judicial settings.

This study in Clinical Medicine aimed to determine whether hindsight bias impacts on retrospective case note review, through an internet survey completed by doctors of different grades. The authors found that in some cases, doctors are markedly more critical of identical healthcare when a patient dies compared to when a patient survives. Hindsight bias while reviewing care when a patient survives might prevent identification of learning arising from errors. They also suggest that hindsight bias combined with a legal duty of candour will cause families to be informed that patients died because of healthcare error when this is not a fact.