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. Author manuscript; available in PMC: 2023 Oct 1.
Published in final edited form as: Cerebellum. 2022 Aug 12;22(5):790–809. doi: 10.1007/s12311-022-01424-1

Table 6.

Summary statistics for SARA, BARS, and Functional Staging slopes (i.e., annual change)

SCA1 SCA2 SCA3 SCA6 Overall
SARA
 n 67 74 147 68 356
 M (SD) 1.542 (2.699) 0.385 (2.909) 1.2 (3.506) 0.994 (3.353) 1.056 (3.228)
 95%_CI [0.884;2.201] [−0.289;1.059] [0.628;1.771] [0.182;1.805] [0.719;1.392]
 Progression_slope_[n (%)] 53 (79.1%) 44 (59.5%) 104 (70.7%) 45 (66.2%) 246 (69.1%)
 Non-progression_slope_[n (%)] 14 (20.9%) 30 (40.5%) 43 (29.3%) 23 (33.8%) 110 (30.9%)
BARS
 n 12 10 14 10 46
 M (SD) 0.427 (2.805) −0.556 (2.476) 1.533 (4.365) −0.167 (2.637) 0.421 (3.274)
 95%_CI [−1.356;2.209] [−2.327;1.215] [−0.988;4.053] [−2.054;1.719] [−0.552;1.393]
 Progression_slope_[n (%)] 7 (58.3%) 5 (50%) 10 (71.4%) 4 (40%) 26 (56.5%)
 Non-progression_slope_[n (%)] 5 (41.7%) 5 (50%) 4 (28.6%) 6 (60%) 20 (43.5%)
Functional_staging
 n 60 68 134 68 330
 M (SD) 0.321 (0.527) 0.137 (0.374) 0.132 (0.674) 0.164 (0.575) 0.174 (0.578)
 95%_CI [0.185;0.457] [0.047;0.228] [0.017;0.247] [0.025;0.303] [0.719;1.392]
 Progression_slope_[n (%)] 48 (80%) 49 (72.1%) 82 (61.2%) 39 (57.4%) 218 (66.1%)
 Non-progression_slope_[n (%)] 12 (20%) 19 (27.9%) 52 (38.8%) 29 (42.6%) 112 (33.9%)

M (SD), mean (standard deviation); CI, confidence interval