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Clinical clusters in Japanese patients with Behçet's syndrome
| Cluster 1 | Cluster 2 | Cluster 3 | Cluster 4 | Cluster 5 | |
| Characteristic clinical presentation | Mucocutaneous dominant | Mucocutaneous with arthritis | Ocular involvement | Neurological involvement | Gastrointestinal involvement |
| Age at onset (years, mean ± SD) | 33.6 ± 10.3 | 37.4 ± 12.3 | 40.5 ± 12.8 | 34.8 ± 10.4 | 37.4 ± 12.3 |
| Sex (ratio of female) (%) | 64.3 | 75.6 | 31.5 | 47.8 | 57.1 |
| HLA-B∗51 (%) | 52.1 | 50.9 | 50.0 | 52,7 | 33.0 |
SD, standard deviation.
