Delay time
| Variables | Univariate OR (95% CI) | p Value | EQ-VAS Multivariate OR (95% CI) | p Value |
|---|---|---|---|---|
| EQ-VAS | ||||
| 0–50 | 2.86 (1.47 to 5.54) | 0.002 | 3.01 (1.43 to 6.34) | 0.004 |
| 51–70 | 1.82 (0.95 to 3.48) | 0.070 | 1.81 (0.90 to 3.66) | 0.096 |
| 71–80 | 1.76 (1.02 to 3.05) | 0.044 | 1.78 (1.04 to 3.05) | 0.035 |
| 81–100 | Reference | Reference | ||
| Age | 1.00 (0.97 to 1.03) | 0.905 | 1.00 (0.97 to 1.03) | 0.991 |
| Ambulance to the cardiology department/PCI unit | 0.37 (0.22 to 0.63) | <0.001 | 0.78 (0.33 to 1.81) | 0.557 |
| Ambulance to the emergency department | 0.44 (0.26 to 0.74) | 0.002 | 0.54 (0.26 to 1.11) | 0.094 |
| Diabetes mellitus | 1.23 (0.79 to 1.84) | 0.391 | 0.93 (0.52 to 1.66) | 0.801 |
| Women | 1.81 (1.04 to 3.17) | 0.036 | 1.51 (0.79 to 2.87) | 0.209 |
| History of heart failure | 1.14 (0.69 to 1.91) | 0.607 | 1.00 (0.49 to 2.03) | 1.000 |
| Hypertension | 1.33 (0.86 to 2.05) | 0.198 | 1.21 (0.74 to 2.00) | 0.446 |
| Prehospital ECG | 0.49 (0.33 to 0.73) | <0.001 | 0.67 (0.40 to 1.12) | 0.124 |
| Prior PCI | 0.78 (0.49 to 1.25) | 0.306 | 0.99 (0.56 to 1.74) | 0.964 |
| Prior stroke | 0.87 (0.47 to 1.61) | 0.661 | 0.68 (0.31 to 1.48) | 0.327 |
| Prior cardiac surgery | 0.85 (0.49 to 1.48) | 0.561 | 0.86 (0.48 to 1.55) | 0.621 |
| Pulmonary rales | 0.96 (0.52 to 1.76) | 0.886 | 1.27 (0.63 to 2.59) | 0.505 |
| Reperfusion treatment | 1.74 (1.11 to 2.72) | 0.016 | 1.28 (0.61 to 2.72) | 0.514 |
| STEMI | 1.81 (1.21 to 2.70) | 0.004 | 1.11 (0.58 to 2.12) | 0.760 |
| Year | ||||
| 2006 | 1.12 (0.42 to 3.01) | 0.817 | 1.17 (0.39 to 3.46) | 0.779 |
| 2007 | 0.73 (0.44 to 1.20) | 0.217 | 0.67 (0.41 to 1.08) | 0.100 |
| 2008 | 1.07 (0.61 to 1.88) | 0.805 | 0.98 (0.55 to 1.74) | 0.946 |
| 2009 | Reference year | Reference year | ||
Patients with a new AMI after 1-year follow-up, n=369.
OR with 95% CI from GEE logistic regression of the probability of delay time (≥2 h).
p Value <0.05 for statistical significance [in bold].
AMI, acute myocardial infarction; GEE, generalised estimating equations; PCI, percutaneous coronary intervention; STEMI, ST-elevation myocardial infarction.