Table 1.

Patient and disease characteristics.

	Number of patients	Proportion (%)
Total	14,260	–
Age	63.5 ± 13.2a	–
Sex
Male	12,022	84.3
Female	2238	15.7
BMI	23.1 ± 3.2a	–
Onset
Primary	12,037	84.4
Recurrent	2223	15.6
Histology
Urothelial carcinoma	13,037	91.4
Squamous carcinoma	274	1.9
Adenocarcinoma	261	1.8
Others	688	4.9
Grade, 1973 WHO	8673
Grade 1	3627	42.0
Grade 2	3546	41.0
Grand 3	1466	17.0
Grade, 2004 WHO	10,893
PUNLMP	1732	16.0
Low-grade	5276	48.7
High-grade	3831	35.3
T classification
Ta	4667	32.7
Primary CIS	108	0.8
T1	5786	40.6
T2 or higher	3591	25.2
Unclear	108	0.8
Concurrent CIS	223	1.6

BMI, body mass index; PUNLMP, papillary urothelial neoplasm of low malignant potential; CIS, carcinoma in situ.

^aMean ± SD.