Table 3.

Tapping accuracy categorized by the presence of dyskinesia according to blinded video ratings

	Dyskinesia type	No dyskinesia	Dyskinesia	pvalue	κ
At rest	any	1,668±884	2,293±713	0.17	0.32
	limb	1,701±1,126	2,378±762	0.17	0.63
	axial	1,824±1,187	2,230±778	0.41	0.88
Finger tapping	any	2,691±1,664	1,857±867	0.41	0.31
	axial	2,663±1,178	1,763±876	0.18	0.27
	active limb	2,043±1,089	1,915±890	1	0.27
	nonactive limb	2,642±1,130	1,646±770	0.16	0.26
Pronation-supination	any	2,453±1,498	1,842±812	0.61	0.39
	axial	2,218±1,310	1,888±865	0.78	0.74
	active limb	2,072±1,073	1,723±712	0.91	0.24
	nonactive limb	2,243±1,241	1,727±612	0.65	0.02

Data reported are pixels away from the center of the target (less is more accurate). Patients were categorized as having dyskinesia vs. no dyskinesia by blinded video analysis. Dyskinesias were further defined as: any; axial; active limb (extremity associated with the task); and nonactive limb (extremities not associated with the task).κvalues represent slight (0.01–0.20), fair (0.21–0.40), moderate (0.41–0.60), substantial (0.61–0.80), and almost perfect agreement (0.81–0.99) [28].