Figure 1. hsa-mir-503 and hsa-mir-1247 were associated with prognosis of PC. (A) Volcanic map of differential expression of miRNAs. The blue dots were down-regulated miRNAs, and the red dots were up-regulated miRNAs. (B) Univariate analysis of two miRNAs significantly associated with DFS. Abbreviation: HR: hazard ratio. 95% CI: 95% confidence interval. (C, D) KM survival curve. p value was obtained based on log-rank test. (E, F) Violin diagram of differential expression levels of two miRNAs in cancer and para-cancer samples. P value was calculated by Wilcoxon method.