In the multivariable logit model of having PCa, age (OR with 95% CI: 1.22(1.09–1.35), p < 0.001), PSA (OR with 95% CI: 1.24(1.04–1.48), p = 0.014), and abnormal DRE (OR with 95% CI: 3.84 (1.38–10.64), p = 0.01) were all related to the cancerous outcome. This evidence concerns the gene KLK3 and posterior cortical atrophy.