Where is the evidence that age affects doctors’ ability?

Editor's note: After a lengthy consultation and drafting process, The Medical Board of Australia this week announced its plan to introduce mandatory competency checks on all doctors aged 70 and over. It's the keystone of an attempt to ensure all doctors are fit to practise. Several doctors have responded by asking: where is the evidence that older doctors pose more risk? In this piece from February, Dr David Richards tries to find an answer.

A recent comment piece asserted that “there is a