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Effects of obesity and height on prostate‐specific antigen (PSA) and percentage of free PSA levels among African‐American and Caucasian men

Prior studies suggest that obese men have lower prostate‐specific antigen (PSA) levels than leaner men. Caucasian (CA) men also may have lower PSA levels than African‐American (AA) men, but the relevance of body size to racial disparities in PSA levels is unclear. The association between body mass index (BMI) and height on PSA and percentage of free PSA (%fPSA) was investigated within AA and CA men without a prior prostate cancer diagnosis.