The survival relationship between PARP1 and patients of NSCLC was analyzed with the data in GEO database. Kaplan-meier survival curve was made using the online survival analysis tool, PROGgene. It was found that the expression of PARP1 was related to the prognosis or recurrence of patients through Kaplan-meier survival curve: The overall survival (OS) in PARP1 high expression group was significantly lower than that in PARP1 low expression group (Figure 9).