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Table 1 Characteristic of patients with Behçet’s disease (BD) who were enrolled in the study

From: Continuous evolution of clinical phenotype in 578 Japanese patients with Behçet’s disease: a retrospective observational study

Characteristics

All (n = 578)

Male (n = 247)

Female (n = 331)

P a

Age at onset (mean ± SD)

36.8 ± 12.4

35.2 ± 12.1

37.8 ± 12.0

0.013 b

Observation period (mean ± SD)

9.2 ± 9.2

8.2 ± 7.6

9.6 ± 8.4

0.036 b

HLA-B51, n (%)

177/352 (50.3)

88/170 (51.8)

89/182 (48.9)

0.59

Oral ulcer, n (%)

572 (99.0)

246 (99.6)

326 (98.5)

0.11

Genital ulcer, n (%)

417 (72.3)

141 (57.3)

276 (83.4)

<0.0001

Eye involvement, n (%)

356 (61.6)

181 (73.3)

175 (52.9)

<0.0001

Skin involvement, n (%)

513 (88.8)

212 (85.8)

301 (90.9)

0.055

Arthritis, n (%)

301 (52.1)

104 (42.1)

197 (59.5)

<0.0001

Epididymitis, n (%)

14 (2.4)

14 (5.7)

  

Gastrointestinal involvement, n (%)

71(12.3)

26 (10.5)

45 (13.6)

0.069

CNS involvement, n (%)

59 (10.2)

34 (13.8)

25 (7.6)

0.015

Vascular involvement, n (%)

46 (8.0)

25 (10.1)

21 (6.3)

0.097

Fulfilling ISG, n (%)

517 (89.4)

213 (86.2)

304 (91.8)

0.030

  1. aMale vs. female groups. bAnalyzed using the unpaired t test. Other variables were analyzed using the chi-square test. CNS central nervous system, ISG International Study Group criteria for BD. Significant results are highlighted in bold font