Figure 3

Kaplan-Meier analysis: Correlation of histology subtype with overall survival. Patients with a plasmacytoid urothelial cancer (lower curve, N=18) showed with 27.4 months (range: 16.8-37.9) the shortest overall survival, patients with a conventional UC (middle curve, N=178) survived in average 62.6 months (range: 54.8-70.4) whereas patients with a micropapillary urothelial cancer possessed the longest average survival with 64.2 months (range: 41.9-86.4; upper curve N=9). The mean survival was significantly different between patients with plasmacytoid urothelial cancer and those with micropapillary urothelial cancer (P=0.013; log rank test). Censoring of patients (marked with a cross) means mathematically removing a patient from the survival curve at the end of his/her follow-up time.