Effect of body mass index on serum prostate-specific antigen levels among patients presenting with lower urinary tract symptoms.

Purpose: Studies among asymptomatic male subjects have suggested that a higher body mass index (BMI) is associated with lower serum prostate-specific antigen (PSA) levels. We aimed to investigate whether a similar effect also occurs in patients presenting with lower urinary tract symptoms (LUTS) to a urological unit and its potential implications.

Methods: A retrospective review was carried out at our centre between 2005 and 2009.