KLK3 and posterior cortical atrophy: PSA levels were in higher ranges in the group of elderly men, when compared to the group of age 45-69: PCa cases in the group of elderly men were 92% more likely to present with PSA levels within the 4-10ng/ml range [OR 1.92, CI95% (1.3-2.9), p <0.01], and 2.6 times more likely of being diagnosed within the PSA range above 10ng/ml [OR 2.63, CI95% (1.7-4.0), p <0.01].