Researchers undertook the study because prostate cancer manifests somewhat differently in black men than it does in white men. Black men tend to get prostate cancer at a younger age and, when the cancer is diagnosed, it is often more advanced and more aggressive.
Black males are also more likely to die from prostate cancer than are white men.
It is generally accepted now that the free PSA test adds important information when the test adds this important information when the total PSA level is modestly elevated in men undergoing screening for prostate cancer. This multi-center study is the largest to compare fPSA results between the two races. Inc. The assay is the only free PSA test approved by the FDA as a safe and effective in helping diagnose prostate cancer. There are conflicting theories about why there are prostate cancer differences between blacks and whites. Some researchers believe the reasons are biological, while others believe the prevailing factors are socioeconomic.