Figure 4

Multivariate Cox’s regression hazard analysis (adjusted to age, sex, tumor grade, tumor stage, lymph node and metastases status, type of chemotherapy): Correlation of histology subtype with overall survival. Patients with a plasmacytoid urothelial cancer (lower curve; N=18) have a 3.2-fold (95% CI: 1.0-9.9; P=0.045) increased risk of death while patients with conventional UC (middle curve; N=178) have a 1.3-fold (95% CI: 0.5-3.7; P=0.558) but not significant increased risk of death compared with patients with a micropapillary urothelial cancer (upper curve, N=9).