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Cumulative incidence of BMs. EGFR-mt patients developed BMs more quickly, and the rate of BMs reached about 50%, while the rate for EGFR-wt patients was about 30% (P < .001, log-rank test). Almost 80% of patients developed BMs within 2–3 years following the diagnosis of NSCLC. EGFR, epidermal growth factor receptor; mt, mutated; wt, wild type; BMs, brain metastases.
