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. 2023 Mar 13;5(2):fcad064. doi: 10.1093/braincomms/fcad064

Figure 3.

Figure 3

Properties of a Hevelius composite model: regression model previously trained to estimate parkinsonism severity (n = 42). This model, which was trained to estimate parkinsonism severity as represented by UPDRS Part III, demonstrated particularly strong relationships with ataxia rating scales, patient-reported function, and had high test–retest reliability. (A and B) Relationship of the model with SARA total score and BARS arm subscore. Hevelius task features were consistently more strongly associated with BARS finger–nose–finger score than SARA finger–nose–finger; thus, the relationship with BARS arm is shown (see Table 4). (C and D) Relationship of the model with PROM-Ataxia total score and arm subscore. (E) Test–retest reliability of the model. (F) Disease versus control violin plot. BARS, Brief Ataxia Rating Scale; PROM-Ataxia, Patient-Reported Outcome Measure of Ataxia; SARA, Scale for the Assessment and Rating of Ataxia; UPDRS, unified Parkinson’s Disease Rating Scale.