Table 3.
Independent predictors of postprocedural CIN in patients with STEMI
| Variables | Univariate Analysis | Multivariate Analysis | ||
|---|---|---|---|---|
| OR (95% CI) | P Value | OR (95% CI) | P Value | |
| Age | 1.070 (1.050‐1.091) | <0.001 | 1.057 (1.013‐1.104) | 0.012 |
| Female sex | 2.274 (1.402‐3.689) | 0.001 | 1.454 (0.465‐4.541) | 0.520 |
| HTN | 2.469 (1.533‐3.968) | <0.001 | 1.091 (0.440‐2.703) | 0.851 |
| DM | 1.968 (1.219‐3.184) | 0.006 | 1.160 (0.441‐3.048) | 0.763 |
| Current smoker | 0.208 (0.119‐0.364) | <0.001 | 0.284 (0.079‐1.009) | 0.052 |
| Killip class ≥2 on admission | 2.564 (1.236‐5.319) | 0.011 | 1.500 (0.384‐3.857) | 0.559 |
| LVEF | 0.939 (0.917‐0.963) | <0.001 | 0.999 (0.951‐1.049) | 0.967 |
| Hgb | 0.725 (0.646‐0.815) | <0.001 | 0.818 (0.636‐1.052) | 0.118 |
| Cr | 9.881 (4.842‐20.162) | <0.001 | 5.476 (1.410‐21.268 | 0.014 |
| Postprocedural no‐reflow | 0.356 (0.215‐0.589) | <0.001 | 1.298 (0.445‐3.787) | 0.632 |
| fQRS complex | 12.820 (6.993‐23.255) | <0.001 | 3.125 (1.127‐8.695) | 0.029 |
| Total stent length | 1.017 (1.001‐1.044) | 0.040 | 1.003 (0.971‐1.037) | 0.839 |
| hs‐CRP | 1.038 (1.009‐1.068) | 0.009 | 1.037 (0.958‐1.122) | 0.362 |
| WBC count | 1.068 (1.005‐1.135) | 0.035 | 1.160 (1.005‐1.340) | 0.043 |
| SYNTAX score | 1.055 (1.028‐1.083) | <0.001 | 1.026 (0.971‐1.085) | 0.356 |
| ST‐segment resolution in ECG | 0.314 (0.163‐0.606) | 0.001 | 0.584 (0.210‐1.623) | 0.302 |
Abbreviations: CI, confidence interval; CIN, contrast‐induced nephropathy; Cr, creatinine; DM, diabetes mellitus; ECG, electrocardiography; fQRS, fragmented QRS complex; Hgb, hemoglobin; hs‐CRP, high‐sensitivity C‐reactive protein; HTN, hypertension; IQR, interquartile range; LVEF, left ventricular ejection fraction; OR, odds ratio; STEMI, ST‐segment elevation myocardial infarction; WBC, white blood cell.