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Table 1 Main demographical, clinical and molecular characteristics of the enrolled subjects

From: Heritability of saccadic eye movements in spinocerebellar ataxia type 2: insights into an endophenotype marker

Variable SCA2 patients
(N = 48)
Preclinical carriers
(N = 25)
Healthy controls
(N = 24)
Gender (female/male) 19/29 16/9 15/9
Age (years) 41.35 ± 9.79
(18–69)
36.88 ± 9.14
(24–61)
41.13 ± 11.05
(20–63)
Age at onset (years) 30.06 ± 9.06
(9–60)
NA NA
Disease duration (years) 11.71 ± 6.08
(3–29)
NA NA
SARA score 15.81 ± 5.59
(6–30)
0.76 ± 0.66
(0–2)
0
Unexpanded CAG repeat (units) 22.08 ± 0.92)
(19–27)
22.84 ± 1.93
(22–29)
22.54 ± 1.76
(20–30)
Expanded CAG repeat (units) 39.81 ± 2.92
(35–47)
35.76 ± 1.90
(32–39)
NA
  1. For quantitative variables the mean ± standard deviation and range (in parenthesis) are shown
  2. NA Not applicable, N Number of subjects, SARA Scale for the assessment and rating of ataxia