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. Author manuscript; available in PMC: 2014 Nov 1.
Published in final edited form as: Parkinsonism Relat Disord. 2013 Jul 21;19(11):10.1016/j.parkreldis.2013.06.018. doi: 10.1016/j.parkreldis.2013.06.018

Table 1.

Demographic information (standard deviations in parentheses) across the non-impulsive PD group and impulsive PD group. UPDRS (n=142), MMSE (n=141), and medication class (n=142) information was available for most patients. P values refers to the independent samples t test between the non-impulsive and impulsive PD groups.

PD Total
Group
(n=143)		 Non-Impulsive PD
Group
(n=105)		 Impulsive PD
Group
(n=38)		 P
value
UPDRS Motor
Scale		 17.77(7.88) 17.46(7.81) 18.63 (8.11) .44
MMSE (max=30
points)		 28.21 (1.96) 28.29 (1.91) 27.97 (2.09) .35
Disease Duration
(years)		 7.95(4.40) 7.87 (4.12) 8.18 (5.17) .71
Age (years) 64.71(9.05) 64.50 (9.17) 65.26 (8.82) .66
Education (years) 15.76(2.31) 15.76 (2.21) 15.76 (2.63) .99
Gender (% Female) 35 32 42 .28
Levodopa (% on
med)		 52 49 62 .15
Dopamine agonist
(% on med)		 49 48 51 .69

PD=Parkinson’s disease; UPDRS=Unified Parkinson’s Disease Rating Scale; MMSE=Mini-Mental State Examination