Fig. 2. Kaplan-Meier survival analysis of local control. A: When the tumor volume was smaller than 7 cm3, the local control rate of steretactic radiosurgery (SRS) was higher (p<0.001). B: If the time interval between diagnosis of anaplastic meningioma and SRS was shorter than 24 months, local control rate was statistically lower (p≤0.05). C: Although the marginal dose is not statistically significant, it shows a trend that is helpful for local control as it is higher.
