. Author manuscript; available in PMC: 2011 Mar 1.

Published in final edited form as: Parkinsonism Relat Disord. 2009 Dec 14;16(3):197–201. doi: 10.1016/j.parkreldis.2009.11.007

Table 1.

Demographic data by Diagnostic Category.

		Normal Control (n = 130)	IPD (n = 101)	ET (n = 49)	Dystonia (n = 32)	PMD (n = 13)	p value
Handedness	Right	116	92	41	30	10
	Left	11	7	6	1	2
	Ambidextrous	3	2	2	1	1
Gender	Male	47	57	15	5	3	<0.001^a
	Female	83	44	34	27	10
Age (yr)^b		64 ± 11.09	69 ± 9.02	61 ± 16.02	58 ± 10.28	49 ± 11.50	<0.001^c

Fisher’s exact test.

Values for age are mean ± SD.

Scheffe test indicates a significant difference between PMD and the control, IPD, and ET categories.