In inpatient populations with BPH and prostate cancer, the overall average prostatic PSA concentration plus or minus statistical significance, including both, whereas the average PSA concentration of the transition region had been 0.21 2-0.13 and 1.02-2 0.70 ng/ml/cc, it is between (p = 0.001). This evidence concerns the gene KLK3 and benign prostatic hyperplasia.