Kaplan-Meier plot for illustrating recurrence-free survival. The solid line shows the Kaplan-Meier curve for 5 patients (pts.) with GATA5 mRNA expression lower than or equal to the cut off of −3.52 (natural logarithm), indicating patients with a shortened recurrence-free survival. The dashed line illustrates the Kaplan-Meier curve for patients with mRNA expression levels above the cut off including 30 pts. Disease progression of ccRCC within a period of approximately two years was observed in seven cases with a low relative mRNA expression level, whereas high GATA5 mRNA expression phenotypes showed only four progression events within that time interval.