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Table 1 Demographics and clinical features of the patient population

From: FXTAS is rare among Portuguese patients with movement disorders: FMR1 premutations may be associated with a wider spectrum of phenotypes

  Cardinal clinical feature  
  Ataxia
(n = 54)
Tremor
(n = 4)
Cognitive deficits
(n = 28)
Total
(N = 86)
Age (mean ± SD) 67.7 ± 9.1 59.0 ± 8.6 70.0 ± 9.2 68.0 ± 9.3
Age-of-onset (mean ± SD) 59.0 ± 6.8 54.0 ± 1.4 60.5 ± 6.7 59.2 ± 6.7
With additional cardinal features (n) 13 1 4 18
Family history (n)     
None 33 3 14 50
Unknown 21 1 14 36