Table 1.

Relative frequencies (%) of SCA1, SCA2, SCA3, SCA6, SCA7, SCA8, and SCA17 among autosomal dominant cerebellar ataxia (ADCA) families or individuals across different European countries

Negative genetics refers to patients for whom the analyses of genes known at the time of the study were negative. The “†” symbol refers to studies also including patients affected by autosomal recessive and sporadic cerebellar ataxias