Table 3. Univariate analyses and multivariate associations between contrast-induced acute kidney injury and a hydration volume-to-body weight ratio (HV/W > 15 vs. HV/W ≤ 15 mL/kg).
| Risk factors | Univariate logistic regression | Multivariate logistic regression | ||||
|---|---|---|---|---|---|---|
| OR | 95% CI | P-value | OR | 95% CI | P-value | |
| HV/W >15 mL/kg | 2.88 | 1.82–4.57 | <0.001 | 2.33 | 1.26–4.31 | 0.007 |
| Age | 1.05 | 1.03–1.08 | <0.001 | 1.04 | 1.01–1.08 | 0.023 |
| CrCl | 0.98 | 0.97–0.99 | <0.001 | 1.01 | 0.99–1.02 | 0.227 |
| Diabetes mellitus | 1.15 | 0.71–1.85 | 0.578 | 1.18 | 0.63–2.21 | 0.602 |
| Anemia | 1.53 | 0.97–2.40 | 0.067 | 1.49 | 0.78–2.82 | 0.225 |
| Use of IABP | 6.71 | 3.90–11.55 | <0.001 | 4.83 | 2.31–10.12 | <0.001 |
| Use of diuretic | 2.04 | 1.28–3.24 | 0.003 | 1.48 | 0.80–2.74 | 0.210 |
| Coronary lesion | 1.40 | 1.09–1.80 | 0.009 | 1.31 | 0.97–1.76 | 0.075 |
| Emergency PCI | 2.92 | 1.84–4.61 | <0.001 | 3.55 | 1.80–7.01 | <0.001 |
| Hypertension | 3.51 | 1.72–7.16 | 0.001 | 0.37 | 0.08–1.73 | 0.205 |
Abbreviations: OR, odds ratio; CI, confidence interval; CrCl, creatinine clearance; IABP, intra-aortic balloon pump; PCI, percutaneous coronary intervention.