INVESTIGATIONS
Follow the claim to the evidence
Each investigation begins with a claim that is often presented as settled fact. We trace it to its original sources, examine what the evidence actually shows, and distinguish observed findings from inference, modelling and opinion.
We set out the potential benefits, harms, limitations and unanswered questions in plain language. The purpose is not to prescribe a conclusion, but to give readers the information needed to reach their own judgement.
LATEST INVESTIGATION
Prostate Cancer Screening: PSA Testing, Benefits, Risks and What the Evidence Shows
PSA screening can prevent some prostate-cancer deaths, but it can also lead to overdiagnosis and unnecessary treatment. We look at the trial evidence, the absolute benefits and harms, and what has changed with MRI.