BreastScreen overdiagnosis risk is minimal: study

Amid calls for a review of the screening program epidemiologist Professor David Roder, of the University of South Australia, said the evidence for a screening benefit was overwhelming.

He analysed 50 studies to estimate the rate of overdiagnosis as a proportion of cancers diagnosed, finding it was commonly around 5–9% worldwide.

Applying overdiagnosis esti­mates to Australian breast cancer rates he found that for a woman aged 50–69 years attending BreastScreen the risk was between 0.6% and 2% over 20 years.

Professor Roder, who presented at the Sydney International Breast Cancer