Variable | Overall | Calgary | Edmonton | P-value |
---|---|---|---|---|
Patients (%) | 2523 | 1374 (54.5) | 1149 (45.5) | Â |
Median Age in Years (IQR) | 70.0 (54.0–80.0) | 68.0 (53.0–80.0) | 72.0 (56.0–80.0) | 0.1 |
Sex (%) | Â | Â | Â | 0.9 |
 Male | 1561 (61.9) | 851 (61.9) | 710 (61.8) |  |
 Female | 962 (38.1) | 523 (38.1) | 439 (38.2) |  |
Number of Comorbidities (%) | Â | Â | Â | <0.001 |
 0 | 1326 (52.6) | 812 (59.1) | 514 (44.7) |  |
 1 | 495 (19.6) | 229 (16.7) | 266 (23.2) |  |
 2 | 289 (11.5) | 138 (10.0) | 151 (13.1) |  |
 3 | 170 (6.7) | 81 (5.9) | 89 (7.8) |  |
 4 | 101 (4.0) | 48 (3.5) | 53 (4.6) |  |
 5 | 59 (2.3) | 24 (1.8) | 35 (3.1) |  |
 ≥6 | 83 (3.3) | 42 (3.1) | 41 (3.6) |  |
Season (%) | Â | Â | Â | 0.002 |
 Autumn | 635 (25.2) | 314 (22.9) | 321 (27.9) |  |
 Spring | 621 (24.6) | 372 (27.0) | 249 (21.7) |  |
 Summer | 659 (26.1) | 369 (26.9) | 290 (25.2) |  |
 Winter | 608 (24.1) | 319 (23.2) | 289 (25.2) |  |
Perforated PUD (%) | Â | Â | Â | 0.03 |
 No | 2456 (97.3) | 1346 (98.0) | 1110 (96.6) |  |
 Yes | 67 (2.7) | 28 (2.0) | 39 (3.4) |  |