NFE2L2 and non-small cell lung carcinoma: That outcome is consistent with previous results reported by other two groups: Kim et al. [17] found Nrf2 was not an independent prognostic factor in stage I NSCLC, and Yang et al. [19] found Nrf2 can be predictive in chemo-resistance and prognosis in stage IIIB or IV NSCLC patients.