According to the National Cancer Institute, African Americans may have the highest rates of prostate cancer in the world. Furthermore, black men often develop the disease at a younger age than white men, and the cancer is often more aggressive. 

The term "adjuvant" means treatment “added to” the primary or initial treatment. When the primary treatment is surgery, even when all detectable disease is removed, there remains a statistical risk that the cancer will return due to microscopic cancer cells left behind. Men with high-risk features such as extra-prostatic extension or high Gleason score face a higher risk of recurrence.