Fig. 1From: Whole brain radiotherapy (WBRT) for leptomeningeal metastasis from NSCLC in the era of targeted therapy: a retrospective studyOverall survival (OS) of leptomeningeal metastasis (LM) from NSCLC cohort and Kaplan-Meier estimates based on clinical characteristics. a The median OS of all the patients after diagnosis of LM was 8.0 months; b The OS for LM patients with EGFR mutation was significantly improved than those wild-type EGFR (P < 0.001); c The OS for LM patients aged < 53.5 years was significantly extended than those ≥53.5 years (P = 0.041)Back to article page