Osarogiagbon RU, Sineshaw HM, Lin CC, et al. - This study was undertaken to evaluate the effect of variations in readily identifiable quality metrics on long-term survival disparities in patients with resected non-small cell lung cancer (NSCLC). Patients in the National Cancer Data Base with NSCLC resections from 2004–2015 within institutions categorized as Community, Comprehensive Community, Integrated Network, Academic, and National Cancer Institute (NCI)-Designated Cancer Programs were retrospectively examined. A total of 169,775 patients were included in the study. The data exhibited that institutional survival disparities could be narrowed, but not eliminated, by targeting 6 readily-identified poor-quality markers. The greatest effect was in community programs. The results considered that residual factors driving persistent institution-level long-term NSCLC survival disparities must be defined in order to eliminate them.