Table 1:

Patient demographics at date of surgery

Number of participants	86
Age	62.9 ± 9.5
Years since onset	11.8 ± 4.4
Sex	Male: 58
	Female: 28
Race	Caucasian: 78
	African American: 3
	American Indian or Alaskan Native: 4
	Any Hispanic: 1
Level of education:	Less than high school: 7
	Completed high school: 14
	Some college or trade School: 25
	Completed bachelor’s degree: 10
	Completed advanced degree: 21
	Did not specify: 9
PD motor subtype:	Tremor dominant: 15
	Postural instability gait disease dominant: 65
	Mixed: 6

Relevant values reported as mean ± standard deviation