Examining rates based on age, race, and tumor characteristics could guide the development of prevention strategies. Over the past twenty years, there has been a consistent rise in breast cancer diagnoses among women younger than 50, with the rate of increase becoming more pronounced in recent years

Breast cancer diagnoses in women under 50 have increased significantly in the past two decades, primarily driven by estrogen-receptor positive tumors. This research highlights the importance of early detection and the need for prevention strategies. Prevention efforts in young women need to adopt a targeted approach to address racial disparities in incidence rates observed at different age phases.

https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2814306 (open access)