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. Author manuscript; available in PMC: 2008 Feb 18.
Published in final edited form as: J Clin Exp Neuropsychol. 2007 Jan;29(1):13–24. doi: 10.1080/13803390500263568

Table 1.

Demographics as a function of age of onset classification

Group Age* Mean (SD) Gender1 M:F Education* Mean (SD) Handedness1 R:L
Early onset (n = 34) 32.4 (10.3) 17:17 12.9 (2.0) 26:8
Late onset (n = 32) 35.3 (10.9) 16:16 12.8 (1.8) 29:3
*

Note Independent samples t-test revealed no differences between groups;

1

Chi-square test revealed no differences between groups.