Global Breast Cancer Cases Projected to Reach 3.5 Million by 2050, According to Lancet Oncology Study
A recent study published in Lancet Oncology has revealed a concerning trend in global breast cancer statistics. The research indicates that the number of new breast cancer cases worldwide could surge from 2.3 million in 2023 to a staggering 3.5 million by 2050. This alarming projection is accompanied by a 44% increase in annual breast cancer-related deaths, rising from 764,000 to nearly 1.4 million during the same period.
The study, led by research scientist Kayleigh Bhangdia of the University of Washington in Seattle, highlights the unequal impact of breast cancer across different regions. While women in high-income countries benefit from advanced screening, diagnosis, and treatment, the burden of breast cancer is shifting to low- and lower middle-income countries (LMICs). These regions often face later-stage diagnoses, limited access to quality care, and higher death rates, threatening to overshadow progress in women's health.
Despite accounting for only 27% of new breast cancer cases globally, women in low- and lower-middle-income countries bear over 45% of all breast cancer-related ill health and early deaths. This disparity is attributed to shortages of essential resources such as radiotherapy equipment, chemotherapy drugs, and the high cost of care.
The study's comprehensive approach involved analyzing data from population-based cancer registries, registration systems, and interviews with family members or caregivers of women who have died from breast cancer. It provided an updated global, regional, and national analysis of women's breast cancer burden and risk factor estimates from 1990 to 2023 in 204 countries and territories, with projections up to 2050.
The research identified six modifiable risk factors contributing to more than a quarter of the global breast cancer burden. High red meat consumption is the leading factor, accounting for nearly 11% of cases, followed by tobacco use at 8%, high blood sugar at 6%, high body mass index at 4%, and alcohol consumption and physical inactivity at 2% each.
The report emphasizes the need for a global response, including stronger prevention policies, increased investment in cancer care infrastructure in low-resource settings, and universal health coverage that includes essential breast cancer services. Dr. Olayinka Ilesanmi, a co-author from the Africa Centres for Disease Control and Prevention, highlights the challenges faced by LMICs, which are struggling with lifestyle changes and inadequate health systems, leading to shortages of critical resources.
The study's findings underscore the importance of addressing the escalating breast cancer burden in LMICs and ensuring that women worldwide have access to timely screening, diagnosis, and treatment. The full report is available for access at [https://www.thelancet.com/journals/lanonc/home].
