Table 2.

Group classification performance between ataxia, controls (CTR) and parkinsonism.

	N	N %	AUC	Sens	Spec
Ataxia vs. CTR	169, 58	0.75/0.25	0.92 (0.83–1.00)	0.89 (0.80–0.98)	0.81 (0.66–0.95)
Ataxia vs. parkinsonism	169, 74	0.66/0.33	0.91 (0.86–0.96)	0.94 (0.90–0.97)	0.72 (0.52–0.93)
parkinsonism vs. CTR	74, 58	0.66/0.33	0.68 (0.55–0.81)	0.69 (0.56–0.83)	0.64 (0.48–0.81)
Mild Ataxia vs. CTR	58, 58	0.50/0.50	0.76 (0.64–0.88)	0.70 (0.56–0.85)	0.83 (0.70–0.96)
Ataxia vs. CTR age <45	56, 45	0.55/0.45	0.93 (0.83–1.00)	0.88 (0.79–0.99)	0.85 (0.72–0.95)
Ataxia vs. parkinsonism age > 45	108, 73	0.60/0.40	0.84 (0.73–0.93)	0.79 (0.69–0.89	0.74 (0.66–0.95)

The columns indicate the number of participants per group (N), the group ratio (N %), receiving operant area under the curve (AUC), sensitivity (Sens) and Specificity (Spec). For each measure the mean across cross-validation runs and the 95th confidence intervals are provided.