| Characteristic | Overall mean (SD) | Number in sample (n) |
| Age in years | 40.7 (15.3) | 171 |
| % Male | 63.4% | 186 |
| % Female | 36.5% | 186 |
| Heart rate* | 99.1 (20.4) | 163 |
| Systolic blood pressure* | 109 (21.1) | 162 |
| Pre-endoscopic rockall score* | 1.87 (1.47) | 163 |
| Rockall score | 3.23 (1.93) | 70 |
| Haemoglobin | 7.21 (3.1) | 96 |
| % Transfused | 58.5% | 171 |
| Total units transfused | 3.14 (2.5) | 98 |
| % Endoscopy | 45.3% | 170 |
| % Operation | 10.1% | 168 |