Characteristic | High admission rate | Medium admission rate | Low admission rate | p Value |
---|---|---|---|---|
N | 29 049 | 30 900 | 29 929 | |
Age (years) | 79 (70, 85) | 78 (69, 85) | 78 (69, 85) | <0.001 |
Male | 14 209 (48.9) | 15 456 (50.0) | 15 101 (50.5) | <0.001 |
Myocardial infarction* | 4983 (17.2) | 5245 (17.0) | 4740 (15.8) | <0.001 |
Prior HF hospitalisation* | 8325 (28.7) | 9093 (29.4) | 8456 (28.3) | 0.27 |
Prior coronary revascularisation* | 2072 (7.1) | 2179 (7.1) | 2127 (7.1) | 0.91 |
Prior implantable defibrillator* | 435 (1.5) | 433 (1.4) | 357 (1.2) | 0.001 |
Prior pacemaker | 1247 (4.3) | 1218 (3.9) | 1021 (3.4) | <0.001 |
Valvular heart disease | 1894 (6.5) | 2032 (6.6) | 1786 (6.0) | 0.006 |
Hypertension | 8864 (30.5) | 9265 (30.0) | 7482 (25.0) | <0.001 |
Atherosclerotic disease | 10 677 (36.8) | 11 257 (36.4) | 10 586 (35.4) | <0.001 |
Diabetes | 7434 (25.6) | 7812 (25.3) | 7226 (24.1) | <0.001 |
Atrial fibrillation | 5708 (19.6) | 6211 (20.1) | 5508 (18.4) | <0.001 |
Ventricular arrhythmias | 525 (1.8) | 538 (1.7) | 461 (1.5) | 0.012 |
Renal disease | 3514 (12.1) | 3638 (11.8) | 3070 (10.3) | <0.001 |
CTAS | 2 (2, 3) | 2 (2, 3) | 3 (2, 3) | <0.001 |
Time of ED visit | ||||
Day (08:00–17:00) | 15 969 (55.0) | 17 512 (56.7) | 17 819 (59.5) | <0.001 |
Evening (17:01–24:00) | 7214 (24.8) | 7498 (24.3) | 6766 (22.6) | |
Morning (00:01–07:59) | 5866 (20.2) | 5890 (19.1) | 5344 (17.9) | |
Emergency length of stay (h) | 5.9 (3.9, 8.6) | 5.5 (3.4, 8.6) | 4.3 (2.6, 7.1) | <0.001 |
Chief complaint | ||||
Suspected HF | 629 (2.2) | 1615 (5.2) | 1328 (4.4) | 0.34 |
Dyspnoea | 19 031 (65.5) | 19 455 (63.0) | 18 817 (62.9) | |
Ankle oedema | 940 (3.2) | 1106 (3.6) | 1198 (4.0) | |
Chest pain | 3425 (11.8) | 3398 (11.0) | 2882 (9.6) | |
Predicted 30-day mortality | 7.9 (4.7, 13.0) | 7.4 (4.4, 12.2) | 6.7 (4.0, 11.1) | <0.001 |
Values are n (%) or median (25th, 75th centile).
*Occurring within 3 years before ED visit date.
CTAS, Canadian Triage Acuity Score; ED, emergency department; HF, heart failure.