To evaluate the prognostic impacts of OLFM1 and BMP6 in patients with EGFR mutation, the most frequent molecular subtype of NSCLC in East Asians, we further performed an analysis combining all patients positive for EGFR mutation from cohort 1 and cohort 2 into cohort E. The clinicopathologic characteristics in patient groups divided by OLFM1 and BMP6 gene expression status are summarized in Table 2. Here, EGFR is linked to non-small cell lung carcinoma.