Table 1.

Case cohort and patient characteristics

PF = posterior fossa, ST = supratentorial, SP = spinal
		Overall, n = 147	PF, n = 111	SP, n = 4	ST, n = 32
Country	UK	65 (44%)	54 (49%)	4 (100%)	7 (22%)
	France	62 (42%)	42 (38%)	0 (0%)	20 (62%)
	Spain	16 (11%)	12 (11%)	0 (0%)	4 (12%)
	Czech Republic	3 (2%)	2 (1.8%)	0 (0%)	1 (3.1%)
	Ireland	1 (0.7%)	1 (0.9%)	0 (0%)	0 (0%)
Gender	M	78 (53%)	64 (58%)	0 (0%)	14 (44%)
	F	69 (47%)	47 (42%)	4 (100%)	18 (56%)
Age (months)	≥36	80 (54%)	51 (46%)	4 (100%)	25 (78%)
	≤36	67 (46%)	60 (54%)	0 (0%)	7 (22%)