Urinary PSA-AAL was not correlated with the percentage of positive cores (Spearman's r = −0.178, P = 0.240) or the percentage of prostate cancer core length (Spearman's r = −0.195, P = 0.199), and the same were true for urinary PSA-PhoSL (percentage of positive cores: Spearman's r = −0.167, P = 0.277; percentage of prostate cancer core length: Spearman's r = −0.093, P = 0.545). Here, KLK3 is linked to Familial prostate cancer.