Table 2 (a) Breakdown, by site, of clinical characteristics of adult patients with obsessive–compulsive disorder (OCD) in the ENIGMA OCD Working Group samples; (b) Breakdown, by site, of clinical characteristics of pediatric patients with obsessive–compulsive disorder (OCD) in the ENIGMA OCD Working Group samples.

From: White matter microstructure and its relation to clinical features of obsessive–compulsive disorder: findings from the ENIGMA OCD Working Group

Site

OCD/HC (N)

Medicated (%)

Age of onset

Duration of illness

YBOCS score

Lifetime anxiety (%)

Lifetime depression %

(a)

       

Amsterdam

38/34

0

15.1 ± 6.8

23.7 ± 12.8

21.3 ± 6.1

42.1

47.4

Bangalore

158/131

39.9

22.3 ± 7.7

7.2 ± 5.2

25.5 ± 6.5

8.9

7

Capetown

22/23

40.9

13.2 ± 5.7

17.2 ± 11.5

23 ± 4.2

0

0

Kyoto

35/41

0

25.2 ± 9

7.7 ± 6.2

21.9 ± 6.6

8.6

0

Milan

63/65

60.3

15.6 ± 6.2

18.9 ± 11.6

31.4 ± 5.2

1.6

7.9

Mount Sinai

16/18

81.3

12.4 ± 5.7

15.1 ± 6.7

19.9 ± 5.9

50

18.8

Munich

73/60

60.3

17.6 ± 6.7

13.5 ± 10.3

20.8 ± 6.2

8.2

23.3

Rome

77/111

94.8

16.8 ± 8

17.3 ± 12.8

23.2 ± 9.3

10.4

9.1

Sao Paulo

37/30

43.2

12.8 ± 5.9

26.3 ± 13.5

29.2 ± 6.2

73

83.8

Shangai

83/45

0

24 ± 9.9

6 ± 5.9

26.2 ± 4.7

0

0

Seoul

98/87

13.3

19.1 ± 7.2

6.2 ± 7

25.8 ± 6.9

1

2

(b)

       

Bangalore

13/13

85

12.8 ± 1.9

1.5 ± 1

21 ± 7.6

23.1

23.1

Barcelona

52/27

78.8

12.2 ± 2.5

1.5 ± 2.1

20.8 ± 7.6

28.8

5.8

British Columbia

13/16

86.7

11.1 ± 3.5

3.3 ± 2.7

14 ± 6

33.3

0

Calgary

19/18

0

NA

NA

23.1 ± 4.7

NA

NA

Chiba

20/6

40

11.9 ± 2.4

2.1 ± 1.8

27 ± 6.2

10

0

Oxford

13/18

63.6

11.7 ± 3

4.7 ± 3.2

20 ± 7.3

31.8

22.7

Yale

22/23

52.2

NA

NA

26.9 ± 4.5

43.5

39.1

Zurich

22/23

57.1

11.1 ± 2.4

4.7 ± 2.3

16.1 ± 10.1

42.9

0

  1. YBOCS Yale-Brown Obsessive–Compulsive Scale, NA not available.