Table 2.
Logistic regression analysis of in-hospital mortality risk
| Variable | Crude OR (95% CI) | P value | AOR (95% CI) | P value |
| Gender | ||||
| Female | 1.736 (1.205 to 2.501) | 0.003* | 1.389 (0.84 to 2.295) | 0.200 |
| Male | 1 (ref) | 1 (ref) | ||
| Age (years) | ||||
| <65 | 1 (ref) | 1 (ref) | ||
| 65–75 | 2.558 (1.717 to 3.812) | <0.001* | 2.437 (1.53 to 3.884) | <0001* |
| >75 | 5.432 (3.367 to 8.764) | <0.001* | 4.042 (2.225 to 7.344) | <0001* |
| Obesity (BMI>30 kg/m2) | 0.540 (0.232 to 1.257) | 0.153 | 0.705 (0.275 to 1.809) | 0.468 |
| Smoking | 0.631 (0.449 to 0.885) | 0.007* | 0.945 (0.587 to 1.52) | 0.814 |
| Diabetes melitus | 1.414 (0.963 to 2.077) | 0.076 | 1.139 (0.719 to 1.804) | 0.580 |
| Hypertension | 1.181 (0.826 to 1.687) | 0.361 | 1.321 (0.85 to 2.053) | 0.216 |
| Family history of CAD | 0.828 (0.445 to 1.541) | 0.552 | 1.03 (0.494 to 2.147) | 0.936 |
| History of cerebrovascular disease | 2.440 (1.455 to 4.092) | <0.001* | 1.954 (1.032 to 3.698) | 0.040* |
| History of angina | 1.253 (0.883 to 1.778) | 0.207 | 1.551 (0.972 to 2.475) | 0.066 |
| History of revascularisation | 0.808 (0.475 to 1.373) | 0.429 | 0.791 (0.398 to 1.573) | 0.505 |
| SBP (mm Hg) | ||||
| ≤100 | 3.224 (2.274 to 4.572) | <0.001* | 0.963 (0.558 to 1.661) | 0.892 |
| >100 | 1 (ref) | 1 (ref) | ||
| HR (beat/min) | ||||
| ≤100 | 1 (ref) | 1 (ref) | ||
| >100 | 5.084 (3.496 to 7.393) | <0.001* | 1.859 (1.08 to 3.202) | 0.025* |
| Shock Index† | ||||
| ≤0.70 | 1 (ref) | 1 (ref) | ||
| 0.71–1.00 | 2.859 (1.878 to 4.350) | <0.001* | 2.189 (1.341 to 3.572) | 0.002* |
| >1.00 | 15.293 (9.465 to 24.712) | <0.001* | 4.033 (1.844 to 8.82) | <0.001* |
| ACS | ||||
| STEMI | 1.568 (1.093 to 2.250) | 0.015* | 1.367 (0.879 to 2.125) | 0.166 |
| NSTEMI/UAP | 1 (ref) | 1 (ref) | ||
| Killip class | ||||
| I | 1 (ref) | 1 (ref) | ||
| II | 2.172 (1.307 to 3.610) | 0.003* | 1.244 (0.711 to 2.176) | 0.445 |
| III | 9.130 (4.417 to 18.872) | <0.001* | 4.768 (2.07 to 10.98) | <0.001* |
| IV | 14.323 (9.257 to 22.164) | <0.001* | 6.859 (3.933 to 11.963) | <0.001* |
*Significant p value
**p<0.05, **p<0.01, ***p<0.001.
†Shock Index is calculated by heart rate divided by systolic blood pressure.
AOR, adjusted OR; BMI, body mass index; CAD, coronary artery disease; HR, heart rate; NSTEMI, non-ST segment elevation myocardial infarction; SBP, systolic blood pressure; STEMI, ST-elevation myocardial infarction; UAP, unstable angina pectoris.