Table 2.

Demographics and clinical characteristics in the second cohort (total number of Parkinson's disease participants was 120)

	Mean	s.d.	Range
Gender, male	83 (69%)	—	—
Age	67.43	8.89	45–87
Education, years	11.90	4.81	0–23
Age of onset, years	61.21	9.79	38–84
Disease duration, years	6.06	4.31	1–20
Hoehn–Yahr stage	2.16	0.76	1–4
Mini-Mental State Examination	25.15	4.28	7–30
Activities of Daily Living Scale	92.88	18.34	0–100
Neuropsychiatric Inventory	5.87	11.43	0–79
PDSFS	46.96	11.88	11–65
Family life, hobbies and self-care	20.79	6.98	0–27
Interpersonal relationship and recreational leisure	21.27	5.01	4–27
Social bond	4.90	3.04	0–14

PDSFS, Parkinson's Disease Social Functioning Scale.