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Table 1 Baseline clinical characteristics and the increase in SARA Total Score estimated from the baseline score and the duration of the disease

From: Clinical characteristics of patients with spinocerebellar ataxias 1, 2, 3 and 6 in the US; a prospective observational study

  Age at onset (yrs) Age at baseline (yrs) Duration of disease (yrs) SARA Total Score Annual estimated increase in SARA Total Score Standard error of parameter estimate R2 R
Type of SCA N M/F Mean STD Mean STD Mean STD Mean STD     
SCA1 60 0.79 40.41 11.40 49.28 12.64 8.93 6.89 14.16 8.39 1.2385 0.0728 0.7176 0.8471
SCA2 75 0.72 36.85 11.69 49.81 13.29 13.46 8.24 16.82 7.46 1.0367 0.0445 0.7882 0.8878
SCA3 138 0.93 39.25 11.81 50.34 12.04 10.92 7.32 14.98 8.78 1.1394 0.0402 0.7490 0.8654
SCA6 72 0.85 52.18 10.34 63.94 10.71 11.76 10.35 14.13 7.64 0.8575 0.0472 0.6980 0.8354
All 345 0.84 41.66 12.66 52.92 13.40 11.30 8.28 15.07 8.23 1.0471 0.0241 0.7344 0.8570