Association Between Older Age and Increasing Gleason Score

Area of Science:

• Oncology
• Urology
• Epidemiology

Background:

• Prostate cancer screening discussions for older men involve weighing risks and benefits.
• Determining if advanced age correlates with a higher likelihood of high-grade or high-risk prostate cancer is crucial for informed decision-making.

Purpose of the Study:

• To investigate the association between advanced age and the probability of harboring high-grade or high-risk prostate cancer.
• To analyze trends in high-grade/high-risk prostate cancer diagnosis in older men before and after major screening trial publications.

Main Methods:

• Utilized the Surveillance, Epidemiology, and End Results (SEER) database to analyze 383,039 men diagnosed with prostate cancer between 2004 and 2011.
• Calculated the prevalence of low-, intermediate-, and high-risk disease, and Gleason scores by age group.
• Conducted a secondary analysis comparing data from 2010-2011 with 2007-2008.

Main Results:

• A significant increase in the probability of Gleason score 8-10 or high-risk prostate cancer was observed with advancing age.
• For men aged 80-84, the percentage of Gleason score 8-10 disease was 28.5% and high-risk disease was 38.7%, compared to 8.9% and 14.3% for men aged 50-54 (P < .001).
• Older men showed a significant increase in the relative probability of high-risk or high-grade disease between 2007-2008 and 2010-2011.

Conclusions:

• Older men exhibit a substantially higher probability of being diagnosed with high-grade or high-risk prostate cancer.
• Healthcare providers and patients should consider the elevated risk of aggressive disease in older men when discussing prostate-specific antigen (PSA) screening.
• Informed discussions about PSA screening for healthy older men with significant life expectancy must account for the increased likelihood of advanced prostate cancer.