Figure 3.

Age distribution and survival analysis of MTT patients. (A) Results revealed that patients with NF-1 were most common in the 20–39 age group while those without NF-1 had two peaks in the 20s and 50s. (B) Life span analysis revealed that the 1-, 2- and 5-year survival rates were 69%, 48% and 35%, respectively. (C and D) Kaplan-Meier survival analysis of the data for the 133 cases with follow-up revealed that complete resection (P=0.010) and metastasis (P<0.001) had a statistically significant effect on the survival curves.