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. Author manuscript; available in PMC: 2020 May 1.
Published in final edited form as: N Engl J Med. 2018 Apr 16;378(22):2093–2104. doi: 10.1056/NEJMoa1801946

Figure 4. Subgroup Analyses of Progression-free Survival among Patients with a High Tumor Mutational Burden.

Figure 4.

A high tumor mutational burden was defined as at least 10 mutations per megabase. The subgroup of patients who had never smoked could not be evaluated owing to the small sample size.