Table 4.

Clinical characteristics of ataxic non-psychotic autopsy study cohort (n = 22)

SCA type	No. for ataxia type
Familial ataxia, gene unknown	8
Episodic ataxia type II (genetically confirmed)	1
Friedrich’s ataxia (genetically confirmed)	2
SCA 2 (genetically confirmed)	2
SCA 3 (genetically confirmed)	5
SCA 5 (genetically confirmed)	1
Fragile X tremor ataxia syndrome (genetically confirmed) with Alzheimer’s pathology	1
SCA 17 (genetically confirmed)	1
Ataxia telangiectasia (genetically confirmed)	1