Table 1. Patient characteristics of 1,892 patients with non-muscle invasive bladder cancer in the participating cohorts.^* .

		Denmark (n = 280)		Netherlands (n = 639)		Spain (n = 973)
Age	Mean (SD)	66.4	10.2	65.3	12.4	65.7	10.0
Gender	Male	219	78.2%	503	78.7%	850	87.4%
Stage	Ta	177	63.2%	432	67.6%	818	84.1%
	T1	103	36.8%	207	32.4%	155	15.9%
Grade	G1	78	27.9%	189	29.6%	419	43.1%
	G2	83	29.6%	283	44.3%	327	33.6%
	G3	119	42.5%	167	26.1%	227	23.3%
Carcinoma in situ	CIS	89	31.8%	52	8.1%	0	0.0%
	No CIS	189	67.5%	572	89.5%	0	0.0%
	Missing	2	0.7%	15	2.4%	973	100.0%
Tumour size	<3 cm	175	62.5%	238	37.2%	564	58.0%
	≥3 cm	73	26.1%	114	17.9%	133	13.6%
	Missing	32	11.4%	287	44.9%	276	28.4%
Number of tumours	1	82	29.3%	349	54.6%	647	66.5%
	>1	13	4.6%	178	27.9%	277	28.5%
	Missing	185	66.1%	112	17.5%	49	5.0%
Treatment	TUR alone	227	81.0%	140	21.9%	404	41.5%
	TUR+BCG	52	18.6%	108	16.9%	289	29.7%
	TUR+Chemo	0	0.0%	80	12.5%	212	21.8%
	TUR+Chemo+BCG	1	0.4%	29	4.5%	51	5.2%
	Other	0	0.0%	5	0.8%	17	1.7%
	Missing	0	0.0%	277	43.4%	0	0.0%
Status tumour **	Recurrence	209	74.6%	303	47.4%	327	33.6%
	Progression	66	23.6%	99	15.5%	93	9.6%
Vital status **	Alive	72	25.7%	321	50.2%	700	71.9%
	Cancer death	12	4.3%	51	8.0%	62	6.4%
	Other death	7	2.5%	90	14.1%	211	21.7%
	Missing	189	67.5%	177	27.7%	0	0.0%

*Numbers are totals (%), unless stated otherwise.

**At the end of follow-up.