Table 1

 Clinical characteristics of patients with Crohn’s disease

ASCA, anti-Saccharomyces cerevisiae antibodies.
Sex
    Female88/161 (54.7%)
Reason for operation
    Obstruction62/154 (40.3%)
    Therapy for refractory disease9/154 (5.8%)
    Fistula45/154 (29.2%)
    Perforation38/154 (24.7%)
Operation number
    1107/159 (67.3%)
    239/159 (24.5%)
    311/159 (6.9%)
    42/159 (1.3%)
Age at surgery (y)
    Mean (range)33.6 (16–66)
Duration of disease at surgery (y)
    Mean (range)8.8 (0–29)
Location of distal margin of resection
    Small bowel77/161 (47.8%)
    Right colon46/161 (28.6%)
    Left colon17/161 (10.6%)
    Anus or rectum21/161 (13%)
Smoking at the time of surgery41/156 (26.3%)
ASCA104/158 (65.8%)
Previous medical therapy (n = 155)
    Corticosteroids120 (77.4%)
    Azathioprine44 (28.4%)
    Methotrexate9 (5.8%)
    Infliximab19 (12.0%)
    Mesalamine51 (32.9%)
    Sulfasalazine83 (53.5%)
    Antibiotics65 (41.9%)