The association between obesity and aggressive forms of prostate cancer is controversial. A study compared preoperative body mass index (BMI) and prostate-specific antigen (PSA) levels as predictive risk factors for increased prostate weight and disease aggressiveness.
Higher BMI was associated with higher prostate weight and PSA, as well as with higher pT stage and pathologic GS in men undergoing radical prostatectomy, providing further evidence that obese men are more likely to have aggressive cancer. BMI thus constitutes an additional risk factor besides PSA.