Supplementary prognostic value of the qPCR score. Each prognostic factor was used to divide the patient cohort in 2 different prognostic subgroups according to prognostic factors reported in Table 1. The qPCR score was then applied to all the poor prognostic subgroups and the good prognosis subgroups. Panels A and B show the median TFS and median OS of the good prognosis subgroups, while panels C and D show the median TFS and median OS of the poor prognostic subgroups. The dotted line and error bar represent the mean and the SEM, respectively. Statistical differences were assessed using the Kruskal-Wallis test.