Table 4 Predictors of 30-day ischemic myocardial events in multivariate analyses
| Â | Multivariate analysis | Â | P value |
|---|---|---|---|
| Â | RR | 95% CI | P |
Age | 0.952 | (0.833, 1.060) | 0.282 |
Gender | 1.137 | (0.351, 3.145) | 0.817 |
ASA | |||
 I–II | Reference |  |  |
 III–IV | 1.061 | (0.291, 3.821) | 0.928 |
BMI (kg/m2) | |||
 18–25 | Reference |  |  |
 25–30 | 0.572 | (0.175, 1.874) | 0.357 |
 > 30 | 1.633 | (0.217, 3.826) | 0.635 |
LMWH bridging | Â | Â | Â |
 No bridging | Reference | ||
 Bridging | 3.114 | (1.124, 8.626) | 0.029 |
Creatinine clearance (ml/min) | |||
 > 60 | Reference |  |  |
 30–60 | 0.352 | (0.056, 2.221) | 0.267 |
 < 30 | 3.931 | (1.121, 13.787) | 0.032 |
Perioperative MAP (mmHg) | |||
 < 60 | 1.416 | (1.041, 1.927) | 0.027 |
 60–70 | Reference |  |  |
 > 70 | 0.954 | (0.821, 1.109) | 0.541 |
Preoperative hemoglobin(g/dl) | |||
 > 12 | Reference | ||
 10–12 | 0.359 | (0.048, 2.703) | 0.320 |
 < 10 | 2.205 | (1.228, 7.109) | 0.019 |
Preoperative platelet(×109/L) | |||
 > 300 | 0.903 | (0.835, 1.052) | 0.073 |
 100–300 | Reference |  |  |
 70–100 | 1.156 | (0.415, 3.210) | 0.785 |
 < 70 | 1.331 | (0.552, 3.589) | 0. 358 |
 Diabetes mellitus | 4.901 | (2.816, 13.758) | 0.006 |