PD (n = 49)

OND (n = 40)

p

Gender

57% males (n = 28)

45% males (n = 18)

0.25

Age (years)

64.84 (sd = 10.84)

60.1 (SD = 12.07)

0.06

Level of education(I, II, III)

22/14/13

13/14/13

0.67

18-BDI-II

16.12 (SD = 7.73)

12.87 (SD = 9.94)

0.03

Anhedonia-BDI-II

2.39 (SD = 1.71)

2.12 (SD =1.99)

0.26

Duration of disease (years)

7.37 (SD = 4.56)

Age at onset (years)

56.7 (SD = 10.44)