OCD patients

Healthy controls

p-value

Age, yrs

30.9 ± 11.7 (n = 39)

29.9 ± 9.1 (n = 37)

0.68a

Gender

0.03b

Male

14 (36%)

22 (59%)

Female

25 (64%)

15 (41%)

Age at onset

23.5 ± 10.2 (n = 36)

0.50c

Length of illness, yrs

7.1 ± 6.6 (n = 36)

0.73c

Y-BOCS score

22 ± 7.6 (n = 37)

0.10c

BDI score

20 ± 11.1 (n = 33)

< 0.01c

Use and dose of antidepressant(s)

32 (82%)

0.03c

BDNF (ng/ml)

17.5 ± 7.3

12.7 ± 4.7

< 0.01a