Table 1. Baseline characteristics of a validation cohort comprising 132 patients with primary non-muscle-invasive bladder cancer.

Variables	No. (%)
Gender
Male	107 (81.1)
Female	25 (18.9)
Tumor size
<3 cm	94 (71.2)
≥3 cm	38 (28.8)
Multifocality
Single	100 (75.8)
Multiple	32 (24.2)
Concomitant carcinoma-in-situ
No	110 (83.3)
Yes	22 (16.7)
Morphology
Papillary	117 (88.6)
Sessile	15 (11.4)
Lymphovascular invasion
No	108 (81.8)
Yes	24 (18.2)
Intravesical therapy
No	71 (53.8)
Yes	61 (46.2)
Tumor stage
Ta	57 (43.2)
T1	75 (56.8)
Grade
Low	77 (58.3)
High	55 (41.7)
Recurrence
No	86 (65.2)
Yes	46 (34.8)
Progression
No	113 (85.6)
Yes	19 (14.4)