New research suggests that current guidelines used by family doctors in England to identify women at risk of breast cancer are failing to catch the vast majority of those who will develop the disease before age 50. A study published in the British Journal of Cancer found that existing criteria set by the National Institute for Health and Care Excellence (NICE) miss up to 95% of women under 50 who are at higher-than-average risk and will go on to develop the disease within a decade. This gap in detection is significant because breast cancer remains one of the leading causes of death for women in this age group.
Currently, the NHS invites women for routine breast screening starting at age 50. For those under 50, referrals for specialist care or additional screening are typically triggered only by a strong family history of the disease. The study, conducted by researchers at the University of Cambridge and the Institute of Cancer Research, London, argues that this approach is too narrow. By relying primarily on inherited genetic factors, the current system overlooks other critical indicators such as lifestyle, reproductive history, and broader genetic information.
To test the effectiveness of current methods, researchers compared the NICE criteria against a comprehensive risk assessment tool called BOADICEA. This model, developed at the University of Cambridge with funding from Cancer Research UK, incorporates a wider range of data points to calculate an individual's risk score. The analysis of over 1,200 women showed that the BOADICEA tool identified eight times as many women who would go on to develop breast cancer compared to the current NICE guidelines.
Identifying these women earlier could allow for more personalized care, including earlier screening or preventive treatments. However, experts note that shifting to a more complex risk assessment model presents practical challenges. Implementing such a system across the NHS would require significant investment and careful planning to ensure equitable access. As NICE continues to review its family history guidelines, these findings are expected to play a central role in discussions about how to improve early detection for younger women.