Table 1 Comparison of patient characteristics between the two hospitals (N = 996)
AHGZMU (n = 407) | PWH (n = 589) | P | |
|---|---|---|---|
Age, years, mean (SD) | 66.6 (14.4) | 63.7 (14.6) | 0.002* |
Males, n (%) | 220 (54.1) | 325 (55.2) | 0.726 |
Past histories | |||
Smoker, n (%) | 69 (17.0) | 78 (13.2) | 0.105 |
Hypertension, n (%) | 245 (60.2) | 362 (60.9) | 0.688 |
Diabetes, n (%) | 79 (19.4) | 153 (26.0) | 0.016* |
Hyperlipidemia, n (%) | 92 (22.6) | 266 (45.2) | < 0.0001* |
Chronic heart failure, n (%) | 26 (6.4) | 62 (10.5) | 0.024* |
Family heart disease, n (%) | 72 (17.7) | 125 (21.2) | 0.169 |
Stroke, n (%) | 26 (6.4) | 72 (12.2) | 0.002* |
Peripheral arterial disease, n (%) | 6 (1.5) | 20 (3.4) | 0.062 |
NHYA classification | |||
NHYA class I, n (%) | 234 (57.5) | 401 (68.1) | 0.001* |
NHYA class II, n (%) | 118 (29.0) | 75 (12.7) | < 0.0001 |
NHYA class III, n (%) | 51 (12.5) | 108 (18.3) | 0.014* |
NHYA class IV, n (%) | 4 (1.0) | 5 (0.8) | 0.826 |
First ED characteristics | |||
Heart rate, bpm, mean (SD) | 88.4 (27.8) | 82.0 (19.1) | < 0.0001* |
Systolic blood pressure, mmHg, mean (SD) | 141.3 (30.1) | 148.7 (25.9) | 0.001* |
Diastolic blood pressure, mmHg, mean (SD) | 78.2 (17.0) | 80.1 (15.4) | 0.018 |
First lab results in ED | |||
Creatinine, μmoL/L, median (IQR) | 88.0 (71.0, 109.0) | 81.0 (66.0, 97.0) | < 0.0001* |
Troponin | |||
≤ 1× | 224 (78.9) | 420 (72.4) | < 0.0001* |
1×-2× | 21 (7.4) | 85 (14.7) | < 0.0001* |
2×-3× | 8 (2.8) | 22 (3.8) | 0.108 |
≥ 3× | 31 (10.9) | 53 (9.1) | 0.441 |
Number of CK done, n (%) | 399 (98.0) | 339 (57.6) | < 0.0001* |
Number of CK-MB done, n (%) | 399 (98.0) | 0 (0) | < 0.0001* |
ST segment depression, n (%) | 80 (8.0) | 19 (1.9) | < 0.0001* |
Onset- ED time,hour, median (IQR) | 4.03 (1.5–13.21) | 6.52 (2.01–23.27) | < 0.0001* |
ED-ECG time, hour, median (IQR) | 0.17 (0.03–0.47) | 0.18 (0.12–0.28) | 0.234 |
HEART Score, median (IQR) | 4 (3,6) | 4 (2,5) | < 0.0001* |
Number of admission | 231 (56.8) | 334 (56.7) | 0.987 |
Final diagnoses | |||
Ischemia coronary chest pain | 120 (29.5) | 163 (27.7) | 0.534 |
NSTEMI, n (%) | 40 (9.8) | 32 (5.4) | |
Unstable angina, n (%) | 65(16.0) | 71(12.1) | |
Stable angina, n (%) | 15 (3.7) | 60 (10.2) | |
Non-ischaemia cardiac chest pain, n (%) | 136 (33.4) | 84 (14.3) | < 0.0001* |
Non-cardiac chest pain, n (%) | 151 (37.1) | 342 (58.1) | < 0.0001* |