To further explore potential roles of the independent SNP in the survival of NSCLC, we first performed an analysis of ERRFI1 mRNA expression levels sourced from the TCGA database, which included 109 pairs of tumor samples (58 lung adenocarcinoma and 51 lung squamous cell carcinoma) and their corresponding adjacent normal tissues. Here, ERRFI1 is linked to non-small cell lung carcinoma.