Research Article

Correlation of Dopaminergic Denervation and the Progression of Autonomic Dysfunctions in Different Clinical Subtypes of Parkinson’s Disease

Table 1

Baseline patient characteristics.

TD subtype (n = 221)Indeterminate subtype (n = 29)PIGD subtype (n = 75) value

Age at PD onset (years)61.2 ± 9.662.2 ± 9.160.5 ± 10.10.78
Gender (male : female)144 : 7823 : 648 : 170.16
Weight (kg)82.2 ± 17.882.8 ± 12.779.5 ± 16.60.44
Duration of symptoms until study enrolment (months)61.7 ± 58.4a)73.3 ± 53.8a)46.6 ± 30.8b)<0.05
Hoehn and Yahr staging at baseline1.5 ± 0.5a)1.9 ± 0.4b)1.6 ± 0.5a)<0.001
MDS-UPDRS Part I score at baseline2.2 ± 1.62.1 ± 1.22.7 ± 2.00.08
MDS-UPDRS Part II score at baseline5.9 ± 3.6a)9.4 ± 4.5b)8.0 ± 4.3b)<0.001
MDS-UPDRS Part III score at baseline20.1 ± 8.6a)25.2 ± 8.9b)20.1 ± 8.0a)<0.05
SCOPA-AUT score8.4 ± 5.8a)10.6 ± 5.0b)9.4 ± 5.9<0.05
SBR, putamen0.7 ± 0.2a)0.6 ± 0.1b)0.6 ± 0.2b)<0.05
SBR, caudate1.9 ± 0.5a)1.6 ± 0.3b)1.7 ± 0.5b)<0.01
Use of dopamine agonist (%)56.551.7610.63
Average LEDD at 48 months (g)379.0 ± 245.5401.9 ± 179.6359.1 ± 198.50.52

For a particular variable, values with different superscripts indicate a statistically significant difference. PD: Parkinson’s disease; MDS-UPDRS: Movement Disorder Society-Unified Parkinson’s Disease Rating Scale; SCOPA-AUT: Scale for Outcomes in Parkinson’s Disease-Autonomic; SBR: Specific binding ratio; LEDD: levodopa equivalent dose.