American Association for Cancer Research

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Table 1

Characteristics of study subjects

Factor	Level	No. of tumors	Percentage (%)
Gender	Male	223	49.8
	Female	225	50.2
Race	Caucasian	436	99.1^a
	Non-Caucasian	3	0.9^a
	Unknown	10
Age at diagnosis (yrs)	≤55	142	31.7
	56–65	113	25.2
	66–75	122	27.2
	>75	71	15.9
Eye color	Blue	153	45.7^a
	Green/Gray	87	26.0^a
	Brown	95	28.4^a
	Unknown	113
Laterality^b	OD	211	47.1^a
	OS	234	52.2^a
	Unknown	3

Factor	Level	No. of tumors	Percentage (%)
Gender	Male	223	49.8
	Female	225	50.2
Race	Caucasian	436	99.1^a
	Non-Caucasian	3	0.9^a
	Unknown	10
Age at diagnosis (yrs)	≤55	142	31.7
	56–65	113	25.2
	66–75	122	27.2
	>75	71	15.9
Eye color	Blue	153	45.7^a
	Green/Gray	87	26.0^a
	Brown	95	28.4^a
	Unknown	113
Laterality^b	OD	211	47.1^a
	OS	234	52.2^a
	Unknown	3

Percentage among knowns.

OD, right eye; OS, left eye.