. Author manuscript; available in PMC: 2009 Oct 15.

Published in final edited form as: Mov Disord. 2008 Oct 15;23(13):1830–1836. doi: 10.1002/mds.22097

Table 1.

Participant characteristics

Demographic	NC	CAG+
Number of subjects	112	43
Age (yr)^a^,^b	38 ± 8	37 ± 8
Education (yr)^b	15 ± 3	16 ± 3
Male-female ratio^c^,^d	27/85	19/24
Race (%white)^c	98	98
Handedness (% right)^c	87	93
Auditory reaction time (ms)^b^,^d	0.004 ± 0.002	0.005 ± 0.003
Visual reaction time (ms)^b^,^e	0.001 ± 0.002	0.002 ± 0.002
Decision reaction time (ms)^b^,^e	0.001 ± 0.003	0.003 ± 0.004
Movement time (ms)^b^,^e	-0.0003 ± 0.003	0.001 ± 0.004
Decision movement time (ms)^b^,^e	-0.001 ± 0.003	0.000001 ± 0.003
Button tapping (30 × 0.1 s)^b^,^e	-0.27 ± 0.27	-0.10 ± 0.34
WAIS-R arithmetic^b	0.021 ± 0.22	-0.03 ± 0.24
WAIS-R picture arrangement^b^,^d	0.15 ± 0.34	-0.01 ± 0.44
WAIS-R digit symbol^b^,^e	-0.64 ± 0.81	-1.112 ± 0.95

Age at initial study visit

Mean ± Standard Deviation

Ratio and percentages (%) were evaluated by Fisher's exact test statistic. All other comparisons performed using t-test

p < .05

p ≤ .01