Mortality, further bleeding and red blood cell (RBC) transfusion rates by complete Rockall score (patients undergoing inpatient endoscopy)
| Complete Rockall Score (n=4989) | 0 (228) | 1 (592) | 2 (588) | 3 (645) | 4 (810) | 5 (749) | 6 (549) | 7 (393) | 8+ (435) |
| Deaths (n) | 1 | 4 | 8 | 20 | 39 | 66 | 65 | 57 | 110 |
| Mortality (%) | 0.4 | 0.7 | 1.4 | 3.1 | 4.8 | 8.8 | 12 | 15 | 25 |
| Mortality ratio relative to score of zero (95% CI)* | 1.0 reference | 1.5 (0.2 to 13) | 3.1 (0.4 to 24) | 7.1 (1.0 to 52) | 11 (1.5 to 79) | 20 (2.8 to 143) | 27 (3.8 to 190) | 33 (4.7 to 231) | 58 (8.4 to 395) |
| Further bleeding (n) | 8 | 24 | 37 | 58 | 80 | 91 | 106 | 103 | 160 |
| Further bleeding (%) | 3.5 | 4.1 | 6.3 | 9.0 | 9.9 | 12 | 19 | 26 | 37 |
| Further bleeding ratio relative to score of zero (95% CI)* | 1.0 reference | 1.2 (0.5 to 2.6) | 1.8 (0.8 to 3.9) | 2.6 (1.2 to 5.4) | 2.8 (1.3 to 5.9) | 3.5 (1.7 to 7.1) | 5.5 (2.7 to 11) | 7.5 (3.7 to 15) | 10 (5.1 to 21) |
| RBC transfusion (n) | 34 | 122 | 223 | 294 | 404 | 444 | 384 | 308 | 359 |
| RBC transfusion (%) | 15 | 21 | 38 | 46 | 50 | 59 | 70 | 78 | 82 |
| RBC transfusion ratio relative to score of zero (95% CI)* | 1.0 reference | 1.4 (1.0 to 2.0) | 2.5 (1.8 to 3.6) | 3.1 (2.2 to 4.3) | 3.3 (2.4 to 4.6) | 4.0 (2.9 to 5.5) | 4.7 (3.4 to 6.5) | 5.3 (3.8 to 7.3) | 5.5 (4.0 to 7.7) |
* Ratios adjusted for hospital clustering effects using binary regression (see statistical methods).