Personality Changes after Deep Brain Stimulation in Parkinson’s Disease

Table 1

Demographic and clinical characteristics.

Gender	31 males/9 females
Age in years, mean (SD)	63.4 (6.4)
Estimated IQ^*, mean (SD)	102.0 (28.3)
Duration of disease in years, mean (SD)	12.1 (3.8)
Years of education, mean (SD)	13.5 (3.4)
Hoehn and Yahr off, median (range)	3 (2 to 4)
Hoehn and Yahr on, median (range)	2 (0 to 3)
Mattis DRS, mean (SD)	140.1 (3.3)

IQ-score was estimated from the Wechsler Abbreviated Scale of Intelligence (WASI).