Nonmotor Features in Parkinson’s Disease: What Are the Most Important Associated Factors?

Table 1

Descriptive characteristics of clinimetric scales.

Scale	Value	Theoretical range
HY (median, IQR)	3 (2.5–4)	1–5
Stages 1/1.5	11.4%
Stages 2/2.5	25.9%
Stage 3	34.4%
Stage 4	21.8%
Stage 5	6.5%
SE-ADL (median, IQR)	75 (60–80)	0–100
MMSE score (mean, SD)	26.2 (4.0)	0–30
BDI score (mean, SD)	15.43 (8.58)	0–63
PDQ-39 SI score (mean, SD)	31.4 (15.3)	0–100
MDS-UPDRS subscores:
Total	76.76 (30.71)	0–260
Part I (mean, SD)	12.5 (6.79)	0–52

HY, Hoehn and Yahr stage; IQR, interquartile range; SE-ADL, Schwab and England Activities of Daily Living Scale; MMSE, Minimental State Examination; BDI, Beck Depression Inventory; PDQ-39 SI, Parkinson’s Disease Questionnaire Summary Index; MDS-UPDRS, Movement Disorders Society’s Unified Parkinson’s Disease Rating Scale.