Table 3.
Univariate and Multivariate Analysis of Risk Factors for Acute Kidney Injury
| Univariate analysis | Multivariate analysis | |||||
|---|---|---|---|---|---|---|
| Odds Ratio | 95% Confidence Interval | p Value | Odds Ratio | 95% Confidence Interval | p Value | |
| Age | 1.029 | 0.981–1.041 | 0.052 | |||
| Male sex | 0.747 | 0.324–1.721 | 0.493 | |||
| BMI | 0.933 | 0.830–1.049 | 0.249 | |||
| Diabetes | 0.347 | 0.035–3.450 | 0.666 | |||
| Hypertension | 0.430 | 0.149–1.237 | 0.111 | |||
| CAD | 0.584 | 0.160–2.129 | 0.411 | |||
| Smoking | 1.352 | 0.567–3.223 | 0.496 | |||
| Preoperative serum creatinine | 0.990 | 0.968–1.012 | 0.364 | |||
| Renal insufficiency | 0.871 | 0.261–2.914 | 0.823 | |||
| Preoperative platelet count | 0.992 | 0.986–0.998 | 0.016 | 0.992 | 0.984–0.999 | 0.022 |
| thrombocytopenia | 1.943 | 0.809–4.670 | 0.138 | |||
| Postoperative nadir platelet count | 0.989 | 0.987–1.000 | 0.041 | |||
| Preoperative hemoglobin | 0.984 | 0.967–1.001 | 0.062 | 0.969 | 0.946–0.993 | 0.010 |
| Postoperative nadir hemoglobin | 0.972 | 0.947–0.998 | 0.036 | |||
| Intraoperative Red blood cells use | 1.082 | 0.066–17.767 | 1.00 | |||
| Intraoperative fresh frozen plasma use | 1.478 | 0.314–6.958 | 0.916 | |||
| Intraoperative platelets use | 4.952 | 0.998–24.577 | 0.034 | |||
| Procedure time | 1.007 | 1.000–1.013 | 0.052 | |||
| CPB duration | 1.009 | 1.000–.018 | 0.043 | |||
| Aortic cross-clamp time | 1.011 | 0.999–1.023 | 0.072 | |||
| DHCA duration per 5 mins | 1.031 | 1.007–1.056 | 0.01 | 1.197 | 1.052–1.362 | 0.006 |
| Lowest rectal temperature (°C) | 1.022 | 0.680–1.534 | 0.918 | |||
| Lowest nasopharyngeal temperature (°C) | 0.655 | 0.448–0.957 | 0.029 | |||
BMI Body mass index, CAD Coronary artery disease; Renal insufficiency, preoperative serum creatinine > 1.2 mg/dL, CPB Cardiopulmonary bypass