Table 2

Surgical treatment

ProbandsCall-up patientsAll patients
Type of operationNo%No%No%
expl lap, exploratory laparotomy.
Colectomy and ileorectal anastomosis 5424 916314539
Restorative proctocolectomy ± ileoanal pouch 19 9 2920 4813
Total proctocolectomy 6127 2316 8423
Segmentary resection 6428 0 0 6417
Ostomy/expl lap/other/unknown 2812 2 1 30 8
No surgery 26 37 63
Total252182434