CI: confidence interval; ECOG: eastern cooperative oncology group; BC: British Columbia; NSCLC: non-small cell lung cancer; NOS: not otherwise specified; EGFR: epidermal growth factor receptor; RT: radiotherapy; 3DCRT: 3D conformal radiotherapy; IMRT: intensity modulated radiotherapy. This evidence concerns the gene EGFR and non-small cell lung carcinoma.