Table 5.
Analysis of risk factors predictive of mortality in AKI patients undergoing AAA repair surgery
| Parameter | Univariate analysis | Multivariate analysis | ||
|---|---|---|---|---|
| HR (95%CI) | P | HR (95%CI) | P | |
| Age (years) | 0.978 (0.917–1.042) | 0.488 | ||
| Male sex (%) | 23.431 (0.000–259.795) | 0.595 | ||
| Baseline SCr (umol/L) | 0.999 (0.990–1.008) | 0.868 | ||
| Baseline blood urea nitrogen (mmol/L) | 0.940 (0.802–1.101) | 0.442 | ||
| Baseline eGFR (ml/min/1.73m2) | 1.003 (0.977–1.029) | 0.848 | ||
| Ruptured abdominal aortic aneurysm (%) | 3.637 (1.174–11.271) | 0.025 | 6.814 (1.344–34.543) | 0.020 |
| Renal artery involvement (%) | 0.939 (0.239–3.700) | 0.929 | ||
| Hypertension (%) | 0.889 (0.182–4.346) | 0.884 | ||
| Cardiovascular diseases (%) | 0.869 (0.238–3.174) | 0.832 | ||
| Diabetes mellitus (%) | 0.480 (0.061–3.766) | 0.485 | ||
| Surgical procedures | ||||
| EVAR (%, reference) | 1 | |||
| Open aneurysm repair (%) | 2.062 (0.663–6.410) | 0.211 | ||
| Operative duration > 230 min (n, %) | 0.962 (0.278–3.222) | 0.950 | ||
| Peak SCr after surgery (umol/L) | 1.003 (1.000–1.005) | 0.023 | ||
| Peak blood urea nitrogen after surgery (mmol/L) | 1.028 (0.986–1.071) | 0.192 | ||
| AKI stage | 0.001 | 0.006 | ||
| Stage 1(reference) | 1 | 1 | ||
| Stage 2 | 11.973 (1.326–108.090) | 0.027 | 12.856 (1.279–129.186) | 0.030 |
| Stage 3 | 41.532 (5.029–342.998) | 0.001 | 37.649 (3.766–376.362) | 0.002 |
| Duration to AKI diagnosis (d) | 0.133 (0.009–2.058) | 0.149 | ||
| Duration to peak SCr (d) | 1.046 (0.903–1.211) | 0.551 | ||