Validation of the instrument
| All patients | Acute patients | Elective patients | ||||
| Sensitivity | Specificity | Sensitivity | Specificity | Sensitivity | Specificity | |
| All AEs | ||||||
| Standard 30* | 5.7 (4.9 to 6.7) | 95.2 (93.5 to 96.6) | 11.5 (9.4 to 13.8) | 89 (82.0 to 93.4) | 3.2 (2.9 to 3.5) | 97.4 (97.1 to 97.7) |
| Standard 90† | 14.8 (8.2 to 24.3) | 92.1 (89.9 to 93.8) | 20.6 (15.6 to 28.1) | 82.6 (75.0 to 87.3) | 15.5 (4.5 to 37.3) | 95.1 (93.1 to 96.2) |
| Readmission 30† | 4.2 (2.9 to 5.5) | 93.8 (92.3 to 94.9) | 4.5 (4.2 to 4.8) | 86.6 (83 to 89.5) | 3.1 (2.3 to 3.9) | 96.8 (96.6 to 97) |
| Readmission 90† | 21.6 (6.4 to 64.4) | 90.4 (88.4 to 92.0) | 12.9 (8.2 to 13.3) | 80.1 (76.0 to 83.6) | 20.8 (3.8 to 68.4) | 94.7 (92.8 to 95.7) |
| Preventable AEs | ||||||
| Standard 30* | 5.9 (5 to 7) | 94.9 (93.3 to 96.2) | 11.8 (9.5 to 14.4) | 89.6 (84.4 to 93.4) | 3.1 (2.9 to 3.6) | 97.3 (96.9 to 97.6) |
| Standard 90* | 18.0 (8.6 to 31.4) | 91.9 (89.9 to 93.6) | 23.2 (15.8 to 36.1) | 83.5 (77.7 to 87.7) | 17.7 (4.6 to 69.0) | 95.1 (93.1 to 96.2) |
| Readmission 30† | 3.0 (2.9 to 3.1) | 93.9 (92.4 to 95.1) | 4.5 (4.2 to 4.9) | 86.9 (83.4 to 89.9) | 2.4 (2.3 to 2.5) | 96.9 (96.7 to 97.2) |
| Readmission 90† | 22.1 (5.1 to 65.5) | 90.5 (88.4 to 92.2) | 12.9 (8.0 to 13.4) | 80.1 (76.1 to 83.5) | 19.9 (3.8 to 57.3) | 94.8 (92.9 to 95.8) |
| Major AEs | ||||||
| Standard 30* | 6.2 (5 to 7.8) | 94.8 (93.2 to 96) | 12.8 (9.2 to 17.5) | 89.1 (85.0 to 92.3) | 3.2 (2.9 to 3.6) | 97.3 (96.9 to 97.6) |
| Standard 90* | 18.9 (8.1 to 39.1) | 91.2 (89 to 92.9) | 18.2 (14.4 to 23.4) | 81.9 (77.2 to 85.8) | 21.2 (4.7 to 68.4) | 95.1 (93.2 to 96.1) |
| Readmission 30† | 3.0 (2.9 to 3.1) | 93.9 (92.4 to 95.1) | 4.5 (4.2 to 5) | 87.0 (83.6 to 90.0) | 2.4 (2.3 to 2.5) | 96.9 (96.7 to 97.2) |
| Readmission 90† | 19.6 (5.1 to 65.5) | 90.5 (88.4 to 92.2) | 8.4 (7.7 to 9) | 80.1 (76.0 to 83.6) | 19.9 (3.8 to 67.9) | 87.2 (92.9 to 95.8) |
| Selected AEs | ||||||
| Standard 30* | 6.5 (5.3 to 8.1) | 95.1 (93.4 to 96.2) | 13.0 (10.1 to 16.2) | 90.0 (85 to 93.7) | 3.3 (3 to 3.6) | 97.2 (96.9 to 97.5) |
| Standard 90* | 14.3 (8.8 to 25.3) | 91.6 (89.2 to 93.3) | 19.5 (16.3 to 23.1) | 83.4 (77.5 to 88.0) | 17.9 (4.7 to 48.2) | 95.0 (93.2 to 96.1) |
| Readmission 30† | 3.0 (2.8 to 3.1) | 93.9 (92.5 to 95.0) | 4.5 (4.2 to 5.2) | 87.0 (83.5 to 89.8) | 2.3 (2.3 to 2.5) | 96.9 (96.6 to 97.1) |
| Readmission 90† | 26.6 (6.5 to 65.6) | 90.5 (88.5 to 92.1) | 13.3 (8.7 to 14.2) | 80.4 (75.8 to 84.0) | 26.2 (3.9 to 69.4) | 87.3 (92.9 to 95.7) |
95% CI in brackets.
*AEs found (with RRR) during index and readmissions versus instrument (readmissions only).
†AEs found (with RRR) during readmissions versus instrument (readmissions only).
AEs, adverse events.