Table 1

Demographic data of patients undergoing bilateral STN DBS

Median (Mean, SD, Range)
Sex distribution49 men, 30 women
Age at surgery58.9 years, (57.3, 7.7, 34.5–70.2)
Duration of PD symptoms11.5 years, (13.4, 7.0, 3.8–42.2)
L-dopa equivalent dose1620 mg per day (1620, 641, 0–3260)
First degree relative diagnosed with PD12/79 (15%)