Moreover, as the percent of the tumor core stained positive for KLK6 or KLK9 increased, survival decreased (HR = 1.63, CI = 1.06–2.50, P = 0.03 and HR = 2.25, CI = 1.21–4.22, P = 0.01, respectively; Table 2). This evidence concerns the gene KLK9 and neoplasm.