FLI1 and astrocytoma (excluding glioblastoma): The multivariate Cox regression analysis further identified the WHO grade (hazard ratio [HR], 0.475; 95% confidence interval, 0.267–0.846; P = 0.011) and Fli-1 protein expression (HR, 0.401; 95% confidence interval, 0.225–0.714; P = 0.002) as independent factors associated with prognosis in astrocytoma patients (Table 2).