HMGCR and benign prostatic hyperplasia: The characteristics of the main cohort and the BPH patient subcohort showed that 5ARI use was associated with older age, never smoking, less frequent alcohol consumption, lower SES, acute urinary retention, higher CCI, aspirin use, NSAID use, HMG-CoA reductase inhibitor use, alpha-blocker use, and more frequent outpatient visits (all p values < 0.05; Table 1).