Figure 3. Significant correlation between fibroblast marker genes and prognosis of BLCA patients. (A) PCA plots of the testing set data before and after integration. (B) Correlation analysis and univariate regression analysis between fibroblast marker genes. Lines indicate a correlation between genes and p<0.0001; purple indicates a prognostic risk factor and green indicates a protective factor. (C) Kaplan-Meier curves for each marker gene with p<0.05.