Figure 2.

Five-year survival has increased over time for both squamous and adenocarcinoma histology. Percent 5-year cancer survival and 95% confidence intervals are plotted from Surveillance Epidemiology and End Results data for cases diagnosed between 1991 and 2007 with follow-up through 2012. Milestones in non-small cell lung cancer (NSCLC) treatment have been overlaid on the graph to provide treatment context. CMS = Center for Medicare and Medicaid Services; ECOG = Eastern Cooperative Oncology Group; EORTC = European Organisation for Research and Treatment of Cancer; FDA = Food and Drug Administration; PET = positron emission tomography; US = United States.