Patient characteristics, comorbidities and causes of death
| Variable (SD) | CAER=1 N=329 | CAER=2,3,4 N=25 | P value |
| Age, mean (SD) | 77.8 (12.6) | 77.4 (14.4) | 0.91 |
| Female sex, no. (%) | 159 (48) | 11 (44) | 0.70 |
| Goals of care on admission, no. (%) | 0.07 | ||
| R1 | 80 (24) | 9 (36) | |
| R2 | 6 (2) | 2 (8) | |
| R3 | 21 (6) | 1 (4) | |
| M1 | 194 (59) | 10 (40) | |
| M2 | 12 (4) | 3 (12) | |
| C1 | 11 (3) | 0 (0) | |
| C2 | 5 (2) | 0 (0) | |
| Goals of care on death, no. (%) | 0.10 | ||
| R1 | 11 (3) | 1 (4) | |
| R2 | 1 (0.3) | 1 (4) | |
| R3 | 6 (2) | 0 (0) | |
| M1 | 54 (16) | 7 (28) | |
| M2 | 3 (0.9) | 1 (4) | |
| C1 | 184 (56) | 10 (40) | |
| C2 | 70 (21) | 5 (20) | |
| Cause of death | 0.72 | ||
| Cancer | 61 (19) | 3 (12) | |
| Cardiac | 40 (12) | 5 (20) | |
| Chronic obstructive pulmonary disease | 2 (0.6) | 0 (0) | |
| COVID | 53 (16) | 6 (24) | |
| Non-COVID infection | 92 (28) | 7 (28) | |
| Stroke | 8 (2) | 0 (0) | |
| Other | 73 (22) | 4 (16) | |
| CAER score | – | ||
| 1 | 329 (100) | 0 (0) | |
| 2 | 0 (0) | 11 (44) | |
| 3 | 0 (0) | 7 (28) | |
| 4 | 0 (0) | 7 (28) | |
| Length of stay (LOS), mean (SD) | 11.1 (12.5) | 15.7 (11.3) | 0.06 |
| Charlson Comorbidity Index, mean (SD) | 7.6 (2.7) | 7.3 (2.9) | 0.63 |
| Myocardial infarction, no. (%) | 86 (26) | 10 (40 | 0.13 |
| Heart failure, no. (%) | 110 (33) | 9 (36) | 0.79 |
| Peripheral vascular disease, no. (%) | 28 (9) | 6 (24) | 0.02 |
| Cerebrovascular disease, no. (%) | 64 (19) | 7 (28) | 0.30 |
| Dementia, no. (%) | 106 (32) | 6 (24) | 0.39 |
| Chronic obstructive pulmonary disease, no. (%) | 97 (29) | 8 (32) | 0.79 |
| Connective tissue disease, no. (%) | 29 (9) | 1 (4) | 0.71 |
| Peptic ulcer disease, no. (%) | 30 (9) | 3 (12) | 0.72 |
| Liver disease, no. (%) | 32 (10) | 3 (12) | 0.72 |
| Diabetes, no. (%) | 67 (20) | 2 (8) | 0.19 |
| End-stage renal failure, no. (%) | 22 (7) | 2 (8) | 0.68 |
| Cancer, no. (%) | 135 (41) | 8 (32) | 0.37 |
| HIV, no. (%) | 2 (0.6) | 0 (0) | – |
CAER, clinical adverse event rating .