Table 1.

Patient demographics by age and gender at time of radiotherapy delivery

Age	# Boys	Boys w/A/S	# Girls	Girls w/A/S
≤1	9	9	12	12
2	18	18	25	25
3	15	15	17	17
4	13	13	16	15
5	18	17	8	7
6	15	6	10	8
7	16	8	12	5
8	9	4	14	7
9	5	2	8	3
10	8	3	9	1
11	8	1	9	2
12	11	0	7	2
13	15	0	5	0
14	9	0	10	1
15	15	2	12	0
16	13	1	7	1
17	11	1	9	1
18	0	-	1	0

Parameters of the study population.