MKI67 and neoplasm: Ki67 and tumor stage 4 showed a tendency towards association (0.08 and 0.09, respectively), where every 10% increase in Ki67 decreases the likelihood of mortality by 20% (aHR=0.98), and the chance of mortality increases by 3.6-fold with tumor stage 4 compared to stage 1 (aHR=3.59).