Age > 80 yr | 39 873 (51.2) | 31 034 (47.8) | 2563 (69.2) | 6276 (68.1) | < 0.001 |
Age, yr, median (IQR) | 81 (73, 87) | 80 (72, 87) | 85 (79, 90) | 84 (79, 89) | |
Sex, male (missing n = 2) | 30 460 (39.1) | 24 883 (38.3) | 1608 (43.4) | 3969 (43.1) | < 0.001 |
Comorbidities |
Atrial fibrillation | 20 684 (26.6) | 10 137 (15.6) | 2914 (78.7) | 7633 (82.8) | < 0.001 |
Cancer | 5660 (7.3) | 4603 (7.1) | 267 (7.2) | 790 (8.6) | < 0.001 |
CAD | 21 290 (27.4) | 15 485 (23.9) | 1735 (46.9) | 4070 (44.2) | < 0.001 |
COPD | 9984 (12.8) | 7592 (11.7) | 670 (18.1) | 1722 (18.7) | < 0.001 |
CHF | 12 488 (16.0) | 7086 (10.9) | 1709 (46.2) | 3693 (40.1) | < 0.001 |
Dementia | 21 289 (27.4) | 17 068 (26.3) | 1122 (30.3) | 3099 (33.6) | < 0.001 |
Hypertension | 49 397 (63.5) | 39 771 (61.3) | 2714 (73.3) | 6912 (75.0) | < 0.001 |
Liver failure | 929 (1.2) | 773 (1.2) | 48 (1.3) | 108 (1.2) | 0.83 |
Multiple sclerosis | 325 (0.4) | 294 (0.5) | 9 (0.2) | 22 (0.2) | 0.003 |
Parkinson | 3414 (4.4) | 2886 (4.5) | 126 (3.4) | 402 (4.4) | 0.01 |
Renal failure | 8230 (10.6) | 6128 (9.4) | 869 (23.5) | 1233 (13.4) | < 0.001 |
Seizure | 2377 (3.1) | 1956 (3.0) | 131 (3.5) | 290 (3.2) | 0.17 |
Stroke or TIA (ischemic) | 11 691 (15.0) | 8656 (13.3) | 818 (22.1) | 2217 (24.1) | < 0.001 |
Stroke (hemorrhagic) | 1592 (2.1) | 1274 (2.0) | 109 (2.9) | 209 (2.3) | < 0.001 |
Venous thromboembolism | 3726 (4.8) | 1949 (3.0) | 707 (19.1) | 1070 (11.6) | < 0.001 |
CCS ≥ 3 | 15 322 (19.7) | 11 110 (17.1) | 1310 (35.4) | 2902 (31.5) | < 0.001 |
Clopidogrel | 5471 (7.0) | 5211 (8.0) | 80 (2.2) | 180 (2.0) | < 0.001 |
ED variables |
Time of ED visit (missing n = 74) |
Day | 42 195 (54.3) | 35 261 (54.4) | 2042 (55.2) | 4892 (53.1) | |
Evening | 25 395 (32.7) | 21 322 (32.9) | 1121 (30.3) | 2952 (32.1) | |
Night | 10 170 (13.1) | 8270 (12.8) | 535 (14.5) | 1365 (14.8) | < 0.001 |
Day of ED visit |
Weekday | 56 419 (72.5) | 47 019 (72.4) | 2713 (73.3) | 6687 (72.6) | |
Weekend | 21 415 (27.5) | 17 898 (27.6) | 990 (26.7) | 2527 (27.4) | 0.53 |
Type of hospital (missing n = 867) |
Small | 4371 (5.7) | 3730 (5.8) | 234 (6.4) | 407 (4.5) | |
Community | 56 142 (72.9) | 46 896 (73.1) | 2570 (70.0) | 6676 (73.3) | |
Academic | 16 454 (21.4) | 13 566 (21.1) | 866 (23.6) | 2022 (22.2) | < 0.001 |
Outcomes |
ICH | 4620 (5.9) | 3772 (5.8) | 303 (8.2) | 545 (5.9) | < 0.001 |
Hospital admission | 12 678 (16.3) | 10 021 (15.4) | 886 (23.9) | 1771 (19.2) | < 0.001 |
Head CT scan in ED | 58 690 (75.4) | 47 002 (72.4) | 3341 (90.2) | 8347 (90.6) | < 0.001 |
30-day mortality | 2462 (3.2) | 1849 (2.9) | 223 (6.0) | 390 (4.2) | < 0.001 |
Delayed ICH within 90 d | 718 (0.9) | 586 (0.9) | 54 (1.5) | 78 (0.9) | 0.02 |
Neurosurgery within 90 d in patients with ICH‡ | 394 (8.5) | 317 (8.4) | 34 (11.2) | 43 (7.9) | 0.001 |
30-day mortality in patients with ICH‡ | 591 (12.8) | 444 (11.7) | 66 (21.8) | 81 (16.7) | < 0.001 |