Improvements in cancer prevention and screening have played a crucial role in averting more deaths from five common cancer types over the past 45 years than treatment advances, according to a recent study led by researchers at the National Institutes of Health (NIH).
Published in JAMA Oncology on December 5, 2024, the study focused on deaths averted from breast, cervical, colorectal, lung, and prostate cancer through a combination of prevention, screening, and treatment advancements. These five cancers were chosen due to their high prevalence and the availability of strategies for prevention, early detection, and treatment.
Lead investigator Katrina A. B. Goddard, Ph.D., emphasized the significant impact of prevention and screening on reducing mortality rates from these cancers. The study revealed that 80% of the 5.94 million deaths averted between 1975 and 2020 were attributed to prevention and screening interventions.
Notably, smoking cessation emerged as the most effective prevention intervention, accounting for the majority of deaths averted, particularly in lung cancer. Other significant contributors included mammography screening for breast cancer, cervical cancer screening, colonoscopy for colorectal cancer, and PSA testing for prostate cancer.
Dr. W. Kimryn Rathmell, director of NCI, stressed the importance of combining effective strategies in prevention, screening, and treatment to further reduce cancer death rates. The study highlighted the need for continued efforts in all three areas to build on the progress made in averting cancer-related deaths.
While the study focused on the five selected cancer types, the authors acknowledged the importance of expanding prevention and screening strategies to other lethal cancers, such as those affecting the pancreas and ovary. They also emphasized the need to address disparities in access to these interventions, especially among underserved populations.
The study’s findings underscored the potential of newer prevention and screening methods, such as HPV vaccination and lung cancer screening, to further reduce cancer mortality rates. The authors also highlighted the importance of developing novel treatments and making screening more accessible to improve outcomes for all cancer patients.
In conclusion, the study highlighted the critical role of prevention and screening in reducing cancer deaths and emphasized the need for a comprehensive approach that integrates advancements in all three areas. By leveraging effective strategies and developing innovative interventions, researchers hope to continue the positive trend of decreasing cancer mortality rates in the future.
