Sample characteristics
| Characteristic | No. (%) of patients* | ||
|---|---|---|---|
| Total n = 696 | General population n = 580 | First Nations n = 116 | |
| Age at diagnosis of IBD, yr, mean ± SD | 41.4 ± 14.8 | 41.5 ± 14.7 | 41.2 ± 15.1 |
| Age group, yr | |||
| ≤ 30 | 157 (22.6) | 130 (22.4) | 27 (23.3) |
| 31–49 | 346 (49.7) | 287 (49.5) | 59 (50.9) |
| ≥ 50 | 193 (27.7) | 163 (28.1) | 30 (25.9) |
| Sex | |||
| Female | 414 (59.5) | 345 (59.5) | 69 (59.5) |
| Male | 282 (40.5) | 235 (40.5) | 47 (40.5) |
| Income quintile† | |||
| 1 (lowest) | 101 (15.4) | 62 (11.3) | 39 (36.1) |
| 2 | 150 (22.8) | 130 (22.6) | 20 (18.5) |
| 3 | 130 (19.8) | 113 (20.6) | 17 (15.7) |
| 4 | 156 (23.7) | 137 (24.9) | 19 (17.6) |
| 5 (highest) | 121 (18.4) | 108 (19.6) | 13 (12.0) |
| Residence‡ | |||
| Rural | 239 (34.6) | 190 (33.0) | 49 (42.2) |
| Urban | 452 (65.4) | 385 (67.0) | 67 (57.8) |
| Region of residence§ | |||
| Regina, Saskatoon and surrounding | 353 (50.8) | 305 (52.7) | 48 (41.4) |
| Northern Saskatchewan | 146 (21.0) | 97 (16.8) | 49 (42.2) |
| Southern Saskatchewan | 196 (28.2) | 177 (30.6) | 19 (16.4) |
| Diagnosis type | |||
| Crohn disease | 342 (49.1) | 300 (51.7) | 42 (36.2) |
| Ulcerative colitis | 354(50.9) | 280 (48.3) | 74 (63.8) |
| Length of follow-up, yr, mean ± SD | 10.7 ± 5.5 | 11.1 ± 5.4 | 8.8 ± 5.4 |
Note: IBD = inflammatory bowel disease, SD = standard deviation.
↵* Unless otherwise stated.
↵† Data of income quintile not available for all participants (missing values = 38).
↵‡ Data of rural or urban residence not available for all participants (missing values = 5).
↵§ Data of region of residence not available for all participants (missing values = 1).