KIF18A and neoplasm: Size of tumor >5 cm (HR, 2.614; 95% CI, 1.495-4.568; P=0.001), III-IV of TNM stage (HR, 1.895; 95% CI, 1.235-2.907; P=0.003), recurrence (HR, 2.074; 95% CI, 1.374-3.131; P =0.001) and high KIF18A expression (HR, 1.682; 95% CI, 1.089-2.600; P =0.019) were independent predictors for OS (Table 3).