Table 2.

iMotor testing and reliability

	Controls	PD-OFF			PD-ON			pvaluea	pvalueb	pvaluec	AUC	CC, %
mean± SD	reliability	UPDRS correlation	mean± SD	reliability	UPDRS correlation
Two-target test
Total taps	101±32	55±27	0.96	−0.55	84±20	0.85	−0.53	0.002	0.15	0.004	0.82	73
Tap interval, ms	324±93	708±413	0.92	0.51	375±97	0.75	0.41	0.01	0.22	0.01	0.80	77
Tap duration, ms	113±120	74±65	0.88	0.35	108±158	0.95	−0.40	0.36	0.94	0.55	0.60	46
Tap accuracy, pixels	1,515±646	1,112±901	0.77	−0.51	2,008±996	0.90	−0.46	0.24	0.18	0.006	0.78	73
Pronation-supination test
Total taps	84±21	55±21	0.60	−0.31	78±20	0.83	−0.55	0.006	0.54	0.003	0.77	68
Tap interval, ms	377±92	650±387	0.81	0.27	409±112	0.76	0.42	0.04	0.50	0.03	0.75	64
Tap duration, ms	4±2	3±1	0.06	0.10	3±2	0.88	0.20	0.26	0.89	0.46	0.45	50

Data are reported as the mean± SD unless specified otherwise. Data were collected for most affected side and dominant hand forp and controls, respectively. PD-OFF/ON, Parkinson disease patients in the OFF state (reemergence of parkinsonian deficits)/ON state (maximal dopaminergic medication efficacy); UPDRS, Movement Disorder Society-Unified Parkinson's Disease Rating Scale; AUC, area under the curve for PD-OFF vs. PD-ON; CC, correct classification.

^aUnpaired/Satterthwaitet test between controls and PD-OFF.

^bUnpaired/Satterthwaitet test between controls and PD-ON.

^cPairedt test between PD-OFF and PD-ON.