Table 3.

Asymmetry of motor performance in Parkinson's disease

Variable	Control	Prediagnostic PD	Vascular PD	Idiopathic PD
Tapping, rhythm	255 ± 569	1047 ± 1208	817 ± 1065	933 ± 1316
Tapping, force	30.0 ± 23.4	76.5 ± 129	297 ± 715	147 ± 410
Tapping, no. of taps	85.6 ± 59.7	191 ± 343	950 ± 1885	537 ± 1259
Tapping, rhythm	26.5 ± 13.8	58.3 ± 72.4	184 ± 441	82.3 ± 200
Tapping, force	46.5 ± 70.8	106 ± 283	120 ± 267	226 ± 1522a

PD, Parkinson's disease.

^a P = 0.0075 (idiopathic PD vs. control). The remaining comparisons were nonsignificant. Statistical analyses were performed using 2‐way analysis of variance followed by the Kruskal‐Wallis test and the Dunn's multiple comparisons test.