Table 1

Demographic data on the patients and controls

VariablePD subjects (n=10)Controls (n=10)
Values are mean (SD) or n.
BDI, Beck depression inventory; IQ, intelligence quotient; PD, Parkinson’s disease.
Age (years), with range63 (5.7), 54 to 7361.6 (7.7), 50 to 73
Years of education15.6 (4.2)15.9 (2.7)
Sex (M:F)8:25:5
Years with PD8.0 (6.2)NA
Estimated verbal IQ127.7 (5.0)127.8 (5.2)
BDI4.8 (1.4)2.4 (2.2)