Factors associated with triggering by physical exertion
| Exertion trigger group | Comparison group | Univariate p value | Odds ratio* (95% CI) | |
|---|---|---|---|---|
| Data are mean (SD) or number (%). | ||||
| *Adjusted for age and sex. | ||||
| GRACE, Global Registry of Acute Coronary Events; NSTEMI, non-ST elevation myocardial infarction; STEMI, ST elevation myocardial infarction; UA, unstable angina. | ||||
| Time of onset: | ||||
| 00 00–06 00 | 0 | 44 (18.4%) | 0.007 | |
| 06 00–12 00 | 8 (30.8%) | 79 (33.1%) | ||
| 12 00–18 00 | 15 (57.7%) | 68 (28.5%) | ||
| 18 00–24 00 | 3 (11.5%) | 48 (20.1%) | ||
| Deprivation | ||||
| Low | 17 (65.4%) | 98 (41.0%) | 0.022 | 1 |
| Medium | 5 (19.2%) | 67 (28.0%) | 0.44 (0.15 to 1.25) | |
| High | 4 (15.4%) | 74 (31.0%) | 0.31 (0.10 to 0.97) | |
| Acute coronary syndrome type | ||||
| NSTEMI/UA | 5 (19.2%) | 83 (37.2%) | 0.019 | 1 |
| Non-Q STEMI | 5 (19.2%) | 57 (25.6%) | 1.44 (0.40 to 5.27) | |
| Q wave STEMI | 16 (61.5%) | 83 (37.2%) | 3.06 (1.07 to 8.78) | |
| Premonitory symptoms | ||||
| Yes | 3 (11.5%) | 116 (48.5%) | 0.001 | 1 |
| No | 23 (88.5%) | 123 (51.5%) | 7.41 (2.16 to 25.4) | |
| Troponin T quartile (µg/l) | ||||
| 1 (<0.56) | 4 (18.2%) | 56 (27.9%) | 0.014 | 1 |
| (0.56–1.85) | 4 (18.2%) | 54 (26.9%) | (0.24 to 4.25) | |
| 3 (1.86–5.50) | 2 (9.1%) | 50 (24.9%) | 0.57 (0.10 to 3.29) | |
| 4 (>5.50) | 12 (54.5%) | 41 (20.4%) | 3.60 (1.18 to 13.2) | |
| GRACE risk score | 102.0 (27.9) | 94.2 (27.1) | 0.005 | |