Figure 1.

Overall survival in the intention-to-treat population: durvalumab plus EP versus EP.

(A) Kaplan–Meier graph of overall survival. (B) Subgroup analysis of overall survival.

Size of circle is proportional to the number of events across both treatment arms.

Smokers are defined as patients who currently use or have previously used cigarettes, cigarillos, cigars, pipe tobacco, or tobacco for smoking; non-smokers are defined as patients who have never used these products.

AJCC, American Joint Committee on Cancer; CI, confidence interval; CNS, central nervous system; EP, etoposide plus either cisplatin or carboplatin; HR, hazard ratio; OS, overall survival; WHO, World Health Organization.