Table 2.
Inpatient management of patients with suspected acute coronary syndrome stratified by peak troponin concentration. Figures are numbers (percentages)
| Peak troponin concentration (µg/L) | P value* | Post hoc analysis P value | ||||||
|---|---|---|---|---|---|---|---|---|
| All (n=2092) | <0.012 (n=988) | 0.012-0.049 (n=352) | ≥0.050 (n=752) | <0.012 v 0.012-0.049 | <0.012 v ≥0.050 | 0.012-0.049 v ≥0.050 | ||
| Diagnosis of ACS | 985 (47) | 195 (20) | 98 (28) | 692 (92) | <0.001 | 0.002 | <0.001 | <0.001 |
| Cardiology referral | 1081 (52) | 310 (31) | 129 (37) | 642 (85) | <0.001 | 0.074 | <0.001 | <0.001 |
| Coronary angiography | 559 (27) | 61 (6) | 22 (6) | 476 (63) | <0.001 | 1.000 | <0.001 | <0.001 |
| PCI | 399 (19) | 22 (2) | 14 (4) | 363 (48) | <0.001 | 0.086 | <0.001 | <0.001 |
| CABG | 37 (2) | 4 (0.4) | 2 (0.7) | 31 (4) | <0.001 | 0.656 | <0.001 | <0.001 |
| Drugs on discharge: | ||||||||
| Aspirin | 1419 (68) | 520 (53) | 232 (66) | 667 (89) | <0.001 | <0.001 | <0.001 | <0.001 |
| Clopidogrel | 796 (38) | 133 (13) | 74 (21) | 589 (78) | <0.001 | 0.001 | <0.001 | <0.001 |
| Dual antiplatelets | 684 (33) | 88 (9) | 46 (13) | 550 (73) | <0.001 | 0.030 | <0.001 | <0.001 |
| ß blockers | 941 (45) | 322 (32) | 149 (42) | 470 (63) | <0.001 | 0.001 | <0.001 | <0.001 |
| ACE inhibitors | 991 (47) | 298 (30) | 165 (47) | 528 (70) | <0.001 | <0.001 | <0.001 | <0.001 |
| Statins | 1380 (66) | 497 (50) | 246 (70) | 637 (85) | <0.001 | <0.001 | <0.001 | <0.001 |
ACS=acute coronary syndrome; PCI=percutaneous coronary intervention; CABG=coronary artery bypass grafting; ACE=angiotensin converting enzyme, IHD=ischaemic heart disease.
*Variables analysed with χ2 test with post hoc Fisher’s exact testing between individual groups with significance set at P<0.0167 to account for multiple comparisons.