We selected 105 patients with SMARCA4‐dNSCLC and 221 patients with SMARCA4‐intact non‐small cell lung cancer (SMARCA4‐iNSCLC) by performing immunohistochemical analysis of 1520 NSCLC samples, and we assessed the patients' clinicopathological features and survival state. The gene discussed is SMARCA4; the disease is non-small cell lung carcinoma.