Abstract 376
| Pelvic/intra-abdominal abscess (n = 13) | Perianal disease (n = 16) | Other fistula (n = 12) | |
|---|---|---|---|
| Smoking | 6/12 (1 not known) | 6/16 | 3/12 |
| Steroid therapy in preceding 3 months | 12/13 (prednisolone, median dose 20 mg) | 8/16 (median 20 mg) | 7/12 (median 15 mg) |