Surgical practice
| Phase I | Phase II | |
| Operative rate | ||
| For bleeding | 134 (5.7%) | 82 (5.0%) |
| For malignancy | 18 (0.8%) | 12 (0.7%) |
| For other reason (e.g. peritonitis) | 29 (1.2%) | 17 (1.0%) |
| Total | 181/2332 (7.8%) | 111/1625 (6.8%) |
| Operator (all patients operated) | ||
| Consultant | 91/181 (51.3%) | 56/111 (50.5%) |
| Unsupervised registrar | 36/181 (19.9%) | 22/111 (19.8%) |
| Involvement of surgical team in management | ||
| All patients | 905/2332 (38.8%) | 621/1625 (38.2%) |
| Over 60 and rebleed | 186/270 (68.9%) | 125/197 (63.5%) |
| Shocked, >4units transfused and rebleed | 48/61 (78.3%) | 34/44 (77.3%) |
| Risk >2 | 543/1274 (42.6%) | 377/902 (40.2%) |
| Consultant informed prior to operation | 149/181 (87.6%) | 93/111 (85.3%) |
| Consultant examination prior to operation | 102/181 (59.3%) | 69/111 (64.5%) |