Fig. 2From: The predictive value of tumor mutation burden for immune checkpoint inhibitors therapy in non-small cell lung cancer is affected by patients’ ageKaplan–Meier curves and HR analysis of the association between TMB and PFS in young and elderly patients in NSCLC. Kaplan–Meier curves of (a) Agelow group and (b) Agehigh group in Rizvi cohort, (c) Agelow group and (d) Agehigh group in Hellmann cohort. HR: hazard ratio; TMB: tumor mutation burden; PFS: progression-free survival; NSCLC: non-small cell lung cancer; CI: confidence intervalBack to article page