KLK3 and neoplasm: Age, PSA level, tumor and node and metastasis stage, ECOG score, and Gleason score were independent risk factors for mortality, with an hazard ratio (HR) of 2.35 (1.03–5.80), 2.70 (2.42–5.06), 2.26 (1.32–4.18), 1.52 (1.13 3.26), and 1.89 (1.08–3.14), respectively.