Table 5.
Univariate Analyses and Multivariate Associations Between CI‐AKI and HV/W >25 mL/kg
| Risk Factors | Univariate Logistic Regression | Multivariate Logistic Regression | ||||
|---|---|---|---|---|---|---|
| OR | 95% CI | P Value | OR | 95% CI | P Value | |
| HV/W ratio >25 mL/kg | 3.33 | 2.08 to 5.35 | 0.000 | 2.11 | 1.24 to 3.59 | 0.006 |
| Age, y | 1.07 | 1.05 to 1.09 | 0.000 | 1.04 | 1.02 to 1.06 | 0.001 |
| Female sex | 1.59 | 1.05 to 2.41 | 0.027 | 1.13 | 0.70 to 1.83 | 0.610 |
| Smoking | 0.66 | 0.45 to 0.97 | 0.034 | 0.85 | 0.55 to 1.32 | 0.468 |
| eGFR, mL/min per 1.73 m2 | 0.97 | 0.96 to 0.98 | 0.000 | 0.99 | 0.98 to 1.00 | 0.093 |
| Congestive heart failure | 2.74 | 1.85 to 4.05 | 0.000 | 1.54 | 0.98 to 2.44 | 0.063 |
| Diabetes mellitus | 1.27 | 0.85 to 1.90 | 0.243 | 0.98 | 0.63 to 1.53 | 0.930 |
| Emergent PCI | 3.26 | 2.20 to 4.85 | 0.000 | 3.17 | 2.04 to 4.93 | 0.000 |
| Anemia | 1.98 | 1.37 to 2.86 | 0.000 | 1.29 | 0.86 to 1.95 | 0.221 |
| Contrast volume >200 mL | 0.78 | 0.49 to 1.25 | 0.305 | 0.95 | 0.57 to 1.60 | 0.860 |
| Use of diuretics | 2.58 | 1.74 to 3.84 | 0.000 | 1.61 | 1.02 to 2.56 | 0.043 |
| Lesions | 1.24 | 1.04 to 1.47 | 0.016 | 1.17 | 0.96 to 1.43 | 0.120 |
| Stents implanted | 0.90 | 0.76 to 1.07 | 0.234 | 0.93 | 0.76 to 1.13 | 0.480 |
The model against a constant‐only model was statistically significant (χ2=107.0989; P<0.0001). Goodness‐of‐fit test (Hosmer–Lemeshow test: χ2=7.7466; P=0.4586). Nagelkerke's R 2: 0.1633. CI‐AKI indicates contrast‐induced acute kidney injury; eGFR, estimated glomerular filtration rate; HV/W, ratio of hydration volume to body weight; OR, odds ratio; PCI, percutaneous coronary intervention; Q, quartile.