Table 1.

Baseline patient characteristics in the SEER 17 registries

Variable	2000–2003	2005–2008
	N (%) 11565	N (%) 12330
Median age (yrs)	66	66
Age Group
<65	5328 (46.1)	5803 (47.1)
>/=65	6237 (53.9)	6527 (52.9)
Race
White	9940 (85.9)	10461 (84.8)
Black	1035 (8.9)	1017 (8.3)
Other	569 (4.9)	814 (6.6)
Unknown	21 (0.2)	38 (0.3)
Stage
Regional	5404 (46.7)	5902 (47.9)
Distant	6161 (53.3)	6428 (52.1)
Gender
Female	3961 (34.3)	4055 (32.9)
Male	7604 (65.8)	8275 (67.1)
Histology
Clear cell	9296 (80.4)	9787 (79.4)
Non-clear cell	2269 (19.6)	2543 (20.6)
Nephrectomy
Yes	7063 (61.1)	7667 (62.2)
No	4502 (38.9)	4663 (37.8)