The expression levels of MCM3AP-AS1 in CSCC and non-tumor tissue collected from the 64 CSCC patients were measured by qPCR. PCR reactions were performed three times and data were compared by paired t test (A). ***, P < 0.001. With the median expression level of MCM3AP-AS1 in CSCC as cutoff score, the patients were divided into high and low level groups (n = 32). Survival curves were plotted based on follow-up data. Survival curves were compared between two groups by log-rank test (B).