Table 2.

Tumor characteristics of 7,516 uveal melanoma patients from the SEER database, 1973–2012

Variable	Frequency	%
Lateralitya
Right	3,759	50.5
Left	3,679	49.4
Bilateral	2	<0.1
Stagea
Localized	6,126	90.9
Regional	506	7.5
Distant	109	1.6
Diagnostic confirmationa
Histopathology	4,845	65.2
Clinical diagnosis	1,400	18.8
Radiography	1,191	16.0

Note:

^aData presented for patients with available information only.

Abbreviation: SEER, Surveillance, Epidemiology, and End Results.