Table 1.

Descriptive statistics (n = 42).

Measure	Mean ± SD
Age (years)	61.2 ± 11.3
Gender (masculine/feminine)	25/17*
Duration of disease (years)	4.96 ± 3.3
Hoehn and Yahr modified stage	2.1 ± 0.98
Mini-Mental State Examination	26.7 ± 2.6
Epworth sleepiness scale	7.5 ± 4.7
Beck depression inventory	18.7 ± 10.7
Levodopa dosage (mg)	393.45 ± 261.4
Levodopa dosage equivalents (mg)	441.3 ± 272.5

*Total of patients.