Table 1. Characteristics of all 314 patients.

Data are presented as median (range) or number (percent).

CIS: carcinoma in situ; LG: low grade; HG: high grade.

	n
Age (years)	67 (24-98)
Overall follow-up (months)	48 (1-264)
Gender
Male	253 (80.6)
Female	61 (19.4)
Primary bladder tumor stage
Ta	206 (65.6)
T1	98 (31.2)
CIS	10 (3.2)
Primary bladder tumor grade (2004 Classification)
LG	156 (49.7)
HG	158 (50.3)
Concomitant CIS
Yes	33 (10.5)
No	281 (89.5)