Table 1.
Demographics and clinical characteristics of participants
| Characteristic | All | Australia | Canada | United Kingdom |
|---|---|---|---|---|
| Participants, n (%) | 351 | 99 (28 %) | 126 (36 %) | 126 (36 %) |
| Gender, n (%) | ||||
| Male | 173 (49 %) | 50 (51 %) | 59 (47 %) | 64 (51 %) |
| Female | 178 (51 %) | 49 (49 %) | 67 (53 %) | 62 (49 %) |
| Age (years), median (IQR) | 40 (30–52) | 42 (33–53) | 40 (29–52) | 38 (31–49) |
| Years since first surgery, median (IQR) | 3.7 (2.1–5.8) | 3.4 (1.4–5.5) | 3.8 (2.4–5.5) | 4.1 (2.4–6.8) |
| Years since diagnosis, median (IQR) | 9.2 (5.7–15.1) | 10.5 (5.4–17.5) | 8.8 (5.7–15.7) | 9.2 (6.3–13.3) |
| UC severity prior to surgery, n (%) | ||||
| Mild | 21 (6 %) | 8 (8 %) | 8 (6 %) | 8 (4 %) |
| Moderate | 50 (14 %) | 15 (15 %) | 11 (9 %) | 24 (19 %) |
| Severe | 280 (80 %) | 76 (77 %) | 107 (85 %) | 97 (77 %) |
| Number of surgical procedures, n (%) | ||||
| 2 | 228 (65 %) | 70 (20 %) | 100 (28 %) | 58 (17 %) |
| 3 | 90 (26 %) | 22 (6 %) | 36 (10 %) | 32 (9 %) |
| 4 | 14 (4 %) | 5 (1 %) | 3 (1 %) | 6 (2 %) |