Men had higher odds of having a PSA test if they had been prescribed BPH medication (vs. non-users; OR 1.59; 95%CI = 1.49–1.70), were diabetic (vs. non-diabetics; OR = 1.11; 95%CI = 1.06–1.15), had a vasectomy (vs. none; OR 1.18; 95%CI = 1.14–1.23), or were overweight (vs. normal weight; OR 1.18 95%CI: 1.13–1.22) or obese (vs. normal; OR 1.15; 95%CI = 1.10–1.20). Here, KLK3 is linked to benign prostatic hyperplasia.