Relationship between CFS assessment scores (admission and in ED) with age and LOS and inpatient mortality
| Admission CFS | Age (IQR) | LOS (IQR) | Inpatient mortality (%) | ED CFS | Age (IQR) | LOS (IQR) | Inpatient mortality (%) |
| 1 | 75 (69 to 82) | 5 (3 to 9) | 0 | 1 | 80 (74 to 85) | 7 (4 to 12) | 5 |
| 2 | 76 (72 to 81) | 6 (3 to 10) | 1 | 2 | 80 (74 to 86) | 7 (4 to 15) | 4 |
| 3 | 79 (73 to 85) | 6 (4 to 11) | 1 | 3 | 82 (76 to 88) | 8 (4 to 15) | 4 |
| 4 | 82 (76 to 88) | 8 (4 to 15) | 4 | 4 | 85 (78 to 90) | 10 (5 to 19) | 7 |
| 5 | 86 (79 to 90) | 10 (5 to 18) | 5 | 5 | 86 (79 to 90) | 11 (5 to 19) | 6 |
| 6 | 87 (80 to 91) | 13 (6 to 21) | 6 | 6 | 87 (79 to 92) | 11 (5 to 21) | 6 |
| 7 | 86 (80 to 91) | 14 (7 to 25) | 11 | 7 | 86 (81 to 91) | 12 (6 to 22) | 6 |
| 8 | 86 (81 to 91) | 11 (5 to 22) | 31 | 8 | 83 (79 to 88) | 11 (6 to 20) | 12 |
| 9 | 82 (73 to 89) | 7 (4 to 14) | 63 | 9 | 83 (82 to 93) | 6 (3 to 12) | 19 |
CFS, Clinical Frailty Scale; ED, emergency department; LOS, length of stay.