Characteristics of the patients
| Enteroarthritis | Uroarthritis | Reiter’s syndrome, aetiology unknown | Total | |
|---|---|---|---|---|
| *Data available for 88 patients. | ||||
| n | 53 | 37 | 5 | 95 |
| Male/female | 21/32 | 34/3 | 5/0 | 60/35 |
| Age at follow up (years) (mean (range)) | 49.5 (30 to 86) | 47.5 (33 to 63) | 48.2 (34 to 61) | 48.7 (30 to 86) |
| Duration of follow up (years) (mean (range)) | 18.4 (7 to 24) | 19.2 (14 to 34) | 21.1 (14 to 38) | 18.9 (7 to 38) |
| Total number of arthritic attacks (median (range))* | 1 (1 to 6) | 1 (1 to 10) | 2 (1 to 3) | 1 (1 to 10) |
| HLA-B27+ | 40/50 (80%) | 30/36 (83%) | 2/3 (67%) | 72/89 (81%) |