Prevalence of germline T790M. Prevalence of germline T790M. A, Querying a database of 31,414 unique cancer patients with plasma NGS results, 48 (0.15%) were found to carry a germline EGFR T790M mutation. Nonsquamous non-small cell lung cancer (NSCLC) was the dominant diagnosis in these patients. B, As compared to the population prevalence of germline EGFR T790M in a reference cohort (0.008%), there is a higher prevalence in subjects with nonsquamous NSCLC (0.34%) but not in subjects with other cancers (0.03%, P = 0.06), suggesting germline EGFR T790M is a risk variant for lung cancer. *, P < 0.05. Yuebi Hu et al. Clin Cancer Res 2017;23:7351-7359 ©2017 by American Association for Cancer Research