KLK3 and diabetes mellitus: Non-alcohol drinkers were most common, with differences across different PSA levels (p = 0.395), and most individuals were current smokers, with differences across different PSA levels (p = 0.035); the majority did not have hypertension, with differences across different PSA levels (p = 0.643); and most individuals did not have diabetes, with differences across different PSA levels (p = 0.001).