Fig. 6

Clinical subgroup analysis. A Forest plot of clinicopathological features. Whisker bars indicate hazard ratio and 95%CI compared with “reference” (control) group. Boxplot of the expression levels of the risk score among different clinical subgroups including (B) age, (C) stage, (D) histological grade, (E) longest dimension, (F) tumor site and (G) race. Boxes indicate lower and upper quartile, error bars indicate maximum and minimum values, while the points outside this range indicate outliers