Table 4 Presenting symptoms, changes on the electrocardiogram and cardiac markers in patients with and without acute coronary syndrome and with raised troponin T levels.
| No ACS, n = 118 | ACS, n = 195 | p Value | |
|---|---|---|---|
| Symptoms | |||
| Chest pain | 15 (12) | 112 (57) | <0.001 |
| Breathlessness | 38 (32) | 34 (17) | 0.003 |
| Collapse | 22 (19) | 21 (11) | 0.050 |
| Others | 44 (37) | 28 (14) | <0.001 |
| ECG* | |||
| ST elevation | 2 (2) | 45 (23) | <0.001 |
| ST depression | 6 (5) | 52 (27) | <0.001 |
| T‐wave inversion | 11 (9) | 33 (17) | NS |
| LBBB or RBBB | 18 (15) | 19 (10) | NS |
| Atrial fibrillation or flutter | 48 (41) | 21 (11) | <0.001 |
| Cardiac markers | |||
| Creatine kinase (U/l) | 115 (62, 216) | 284 (110, 787) | <0.001 |
| Troponin T (μg/l) | 0.05 (0.03, 0.08) | 0.34 (0.09, 1.52) | <0.001 |
| Number of troponin T measurement | 1 (1, 1) | 1 (1, 1) | NS |
ACS, acute coronary syndrome; LBBB, left bundle branch block; RBBB, right bundle branch block.
Values in parentheses are percentages or 25th and 75th centiles.
*Presenting electrocardiogram (ECG) was unavailable in four patients without ACS.