Control participants

Patients with OCD

Group comparison (p value)

Gender ratio (M/F)

8/15

11/12

0.36

Mean (SD)

Mean (SD)

Age

37.86 (12.95)

34.68 (9.50)

0.36

Duration of illness (years)

/

12.86 (8.45)

Years of formal education

14.86 (3.12)

13.5 (2.84)

0.14

Beck Depression Inventory score

6.64 (5.82)

21.27 (12.18)

<0.001

Vancouver Obsessive Compulsive Inventory

Total score

33.27 (21.93)

95.09 (32.49)

<0.001

Factor 1 (checking)

9.59 (5.91)

25.23 (10.55)

<0.001

Factor 2 (contamination)

5.41 (6.26)

22.45 (12.44)

<0.001

Factor 3 (obsession)

5.50 (5.91)

6.77 (7.01)

0.52

Factor 4 (hoarding)

5.59 (5.21)

16.82 (10.46)

<0.001

Factor 5 (just right)

3.45 (2.89)

12.68 (7.92)

<0.001

Factor 6 (indecisiveness)

4.18 (3.05)

11.14 (5.70)

<0.001