Patients with KLK9 % tumor core stained < 4 (n = 29) had median survival of 422 d; patients with KLK9 % tumor core stained = 4 (n = 31) had a median survival of 311 d (HR = 1.70, CI = 0.98–2.95, P = 0.061; Table 3 and Fig. 3). This evidence concerns the gene KLK9 and neoplasm.