Table 1.

Patient Demographics

Patient characteristics (N = 28)	N (%)
Sex
Male	18 (64.2)
Female	10 (35.8)
Laterality
Unilateral	19 (67.9)
Bilateral	9 (32.1)
Age at diagnosis (months)
Mean	17.7
Range	1–54
RB1 mutational status
Not known or test not performed	11 (39.2)
Known	17 (60.7)
Germline	6/17 (35.3)
Nongermline	10/17 (58.8)
No RB1 mutation identified	1/17 (5.9)
Secondary tumors	2 (7.1)
Distant metastasis	4 (14.2)