Survival after Sublobar Resection for Early-Stage Lung Cancer: Methodological Obstacles in Comparing the Efficacy to Lobectomy  Emanuela Taioli, MD, PhD, Rowena Yip, MPH, Ingram Olkin, PhD, Andrea Wolf, MD, MPH, Daniel Nicastri, MD, Claudia Henschke, MD, PhD, David Yankelevitz, MD, Harvey Pass, MD, Raja M. Flores, MD  Journal of Thoracic Oncology  Volume 11, Issue 3, Pages 400-406 (March 2016) DOI: 10.1016/j.jtho.2015.10.022 Copyright © 2015 International Association for the Study of Lung Cancer Terms and Conditions

Figure 1 Absolute difference in 5-year survival between lobectomy versus sublobectomy for stage I lung cancer from 1994 to 2014 (absolute numbers are reported in Table 1 under the 5-year survival column). Note: red dots denote studies on stage IA lung cancers; square dots denote the two propensity matched studies; the orange horizontal line marks the difference in survival reported by the only randomized clinical trial,1 for comparative purposes (stage was determined using radiography in the randomized trial). Journal of Thoracic Oncology 2016 11, 400-406DOI: (10.1016/j.jtho.2015.10.022) Copyright © 2015 International Association for the Study of Lung Cancer Terms and Conditions