Table 1 Baseline characteristics.
N | AMI patients | Patients not included | P-value |
|---|---|---|---|
n = 87,911 | n = 742,588 | ||
Age, year, median (IQR) | 71.0 (61.0, 80.0) | 77.0 (66.0, 84.0) | < 0.001 |
Age ≤ 64, n (%) | 29,387 (33.4) | 169,712 (22.9) | < 0.001 |
Age 65–74, n (%) | 24,116 (27.4) | 153,860 (20.7) | |
Age 75–89, n (%) | 30,384 (34.6) | 345,328 (46.5) | |
Age ≥ 90, n (%) | 4024 (4.6) | 73,688 (9.9) | |
Gender, male, n (%) | 24,481 (27.8) | 325,402 (43.8) | < 0.001 |
Height, cm, median (IQR) | 160.0 (150.0, 168.0) | 154.0 (142.0, 163.0) | < 0.001 |
Weight, kg, median (IQR) | 60.0 (49.0, 69.1) | 51.0 (39.3, 61.8) | < 0.001 |
Charlson score, median (IQR) | 2.0 (1.0, 3.0) | 1.0 (1.0, 2.0) | < 0.001 |
AMI, n (%) | 87,911 (100.0) | 0 (0.0) | < 0.001 |
Angina, n (%) | 2235 (2.5) | 84,209 (11.3) | < 0.001 |
UAP, n (%) | 0 (0) | 45,147 (6.1) | < 0.001 |
Atrial fibrillation, n (%) | 141 (0.2) | 26,040 (3.5) | < 0.001 |
Heart failure, n (%) | 2054 (2.3) | 242,226 (32.6) | < 0.001 |
Aortic disease, n (%) | 162 (0.2) | 45,914 (6.2) | < 0.001 |
Cardiac arrest, n (%) | 2495 (2.8) | 70,581 (9.5) | < 0.001 |
Pulmonary embolism, n (%) | 34 (< 1) | 9954 (1.3) | < 0.001 |
Hospital bed count, median (IQR) | 467 (341, 621) | 464 (330, 631) | 0.088 |
Average temperature 1 day before admission, °C, median (IQR) | 15.0 (6.9, 22.3) | 14.9 (6.9, 22.3) | 0.360 |
Average humidity 1 day before admission, %, median (IQR) | 70.5 (60.0, 80.5) | 71.0 (60.3, 81.0) | < 0.001 |
