Table 1 Relative risks by gender for clinical variables among patients with Behçet’s syndrome

Oral ulcer

856 (99.5)

459 (99.4)

397 (99.7)

1.00 (0.99, 1.00)

P = 0.628

Genital ulcer

663 (77.1)

328 (71.0)

335 (84.2)

0.84 (0.79, 0.91)

P < 0.0001

Skin lesions

477 (55.5)

273 (59.1)

204 (51.3)

1.15 (1.02, 1.30)

P = 0.021

Erythema nodosum

344 (40.0)

183 (39.6)

161 (40.5)

0.98 (0.83, 1.15)

P = 0.802

Folliculitis

208 (24.2)

138 (29.9)

70 (17.6)

1.70 (1.32, 2.19)

P < 0.0001

Arthritis

104 (12.1)

59 (12.8)

45 (11.3)

1.13 (0.79, 1.63)

P = 0.511

Arthralgia

77 (9.0)

46 (10.0)

31 (7.8)

1.28 (0.83, 1.98)

P = 0.267

Ocular involvement

155 (18.0)

113 (24.5)

42 (10.6)

2.32 (1.67, 3.22)

P < 0.0001

Anterior uveitis

18 (2.1)

9 (1.9)

9 (2.3)

0.86 (0.35, 2.15)

P = 0.749

Panuveitis

137 (15.9)

104 (22.5)

33 (8.3)

2.72 (1.88, 3.92)

P < 0.0001

Intestinal involvement

178 (20.7)

92 (19.9)

86 (21.6)

0.92 (0.71, 1.20)

P = 0.541

Intestinal erosion

7 (0.8)

3 (0.6)

4 (1.0)

0.65 (0.15, 2.87)

P = 0.710

Intestinal ulcer

141 (16.4)

71 (15.4)

70 (17.6)

0.87 (0.65, 1.18)

P = 0.381

Intestinal perforation

30 (3.5)

18 (3.9)

12 (3.0)

1.29 (0.63, 2.65)

P = 0.483

Esophageal ulcer

36 (4.2)

21 (4.5)

15 (3.8)

1.21 (0.63, 2.31)

P = 0.571

Vascular involvement

73 (8.5)

51 (11.0)

22 (5.5)

2.00 (1.23, 3.23)

P = 0.004

Deep venous thrombosis

29 (3.4)

22 (4.8)

7 (1.8)

2.71 (1.17, 6.27)

P = 0.015

Major vein (vena cava, hepatic) thrombosis

7 (0.8)

6 (1.3)

1 (0.3)

5.17 (0.63, 42.75)

P = 0.131

Arterial thrombosis or aneurysms

46 (5.3)

32 (6.9)

14 (3.5)

1.97 (1.07, 3.64)

P = 0.027

Cardiac lesion

44 (5.1)

38 (8.2)

6 (1.5)

5.46 (2.33, 12.77)

P < 0.0001

CNS disorder

31 (3.6)

24 (5.2)

7 (1.8)

2.95 (1.29, 6.78)

P = 0.007

Parenchymal involvements

23 (2.7)

16 (3.5)

7 (1.8)

1.97 (0.82, 4.74)

P = 0.122

MDS

6 (0.7)

1 (0.2)

5 (1.3)

0.17 (0.02, 1.47)

P = 0.101