Table 2. Comparison of laboratory characteristics among DVI patients with and without AKI.
| Parameters | Overall patients N = 667 | AKI group N = 95 | Non-AKI group N = 572 | P-value |
|---|---|---|---|---|
| Age (years, mean ± SD) | 30.68 ± 16.13 | 40.75 ±17.24 | 29.01 ±15.32 | <0.001* |
| Anthropometric Characteristics | ||||
| Weight (kg, mean ± SD) | 56.84 ±17.71 | 66.36 ± 13.2 | 55.62 ±17.86 | <0.001* |
| Height (cm, mean ± SD) | 151.78 ±18.06 | 160.26 ± 16.51 | 150.58 ±17.97. | 0.001* |
| BMI (kg/m2, mean ± SD) | 24..42 ± 6.46 | 25.67 ± 4.06 | 24.24 ± 6.72. | 0.054 |
| Serum creatinine (μmol/L, mean ± SD) | 99.13 ± 58.49 | 175.17 ± 124.35 | 86.50 ± 17.99 | <0.001* |
| BUN (mmol/L, mean ± SD) | 4.44 ± 3.43 | 7.73 ± 7.35 | 3.89 ± 1.63 | <0.001* |
| BUN: Cr ratio | 11.58 ± 6.06 | 12.31 ± 11.18 | 11.46 ± 4.69 | 0.215 |
| Uric acid (μmol/L, mean ± SD) | 296.34 ± 112.18 | 371.34 ± 145.81 | 282.16 ± 98.59 | <0.001* |
| Serum K (mmol/L, mean ± SD) | 3.74 ±.55 | 3.83 ±.59 | 3.73 ± 0.54 | 0.112 |
| Serum Na (mmol/L, mean ± SD) | 135.23 ± 7.12 | 134.95 ± 6.18 | 135.28 ± 7.27 | 0.679 |
| Serum albumin (g/L, mean ± SD) | 40.26 ± 15.35 | 39.05 ± 5.89 | 40.48 ± 16.49 | 0.428 |
| AG ratio | 1.79 ± 4.46 | 1.49 ±.47 | 1.84 ± 4.8 | 0.113 |
| AST (IU/L, mean ± SD) | 152.42 ± 209.75 | 188.68 ± 256.79 | 145.86 ± 199.69 | 0.083 |
| ALT (IU/L, mean ± SD) | 114.36 ± 166.64 | 171.74 ± 236.41 | 104.40 ± 149.43 | 0.015* |
| ALP (IU/L, mean ± SD) | 105.85 ± 71.32 | 110.11 ± 73.02 | 105.11 ± 71.08 | 0.558 |
| Total bilirubin (μmol/L, mean ± SD) | 12.29 ± 18.39 | 14.60 ± 18.64 | 11.86 ± 18.34 | 0.207 |
| Urine specific gravity (mean ± SD) | 1.012 ±.009 | 1.012 ±.011 | 1.013 ±.009 | 0.801 |
| Urinary pH (mean ± SD) | 6.2 ± 1.6 | 6.53 ±.862 | 6.17 ± 1.74 | 0.177 |
| Urine volume (ml/24 hours, mean ± SD) | 988.4 ± 692.5 | 982.37 ± 670.37 | 989.4 ± 696.8 | 0.932 |
| Creatinine kinase (IU/L, mean ± SD) | 234.61 ± 125.2 | 300.4 ± 145.4 | 152.4 ± 89.3 | 0.002* |
| Leucocytes (×109/L, mean ± SD) | 5.15 ± 14.77 | 5.30 ± 4.35 | 5.13 ± 15.83 | 0.918 |
| Erythrocytes (×1012/L, mean ± SD) | 4.92 ± 0.63 | 4.88 ±.51 | 4.92 ± 0.65 | 0.105 |
| Thrombocytes (×109/L, mean ± SD) | 97.59 ± 63.14 | 89.51 ± 48.29 | 98.89 ± 65.15 | 0.196 |
| Hemoglobin (g/dL, mean ± SD) | 14.21 ± 7.97 | 14.38 ± 1.63 | 14.18 ± 8.54 | 0.631 |
| Hematocrit (%/L, mean ± SD) | 40.18 ± 5.09 | 41.49 ± 4.47 | 39.98 ± 5.16 | 0.005* |
| PT (seconds, mean ± SD) | 13.13 ± 1.35 | 15.42 ± 2.84 | 11.84 ± 0.88 | <0.001* |
| aPTT (seconds, mean ± SD) | 44.23 ± 9.01 | 44.74 ± 7.99 | 44.15 ± 9.18 | 0.563 |
| International normalized ratio (INR) | 1.05 ± 0.56 | 1.17 ±.96 | 1.0329 ± 0.44 | 0.227 |
| Length of hospitalization (days, mean ± SD) | 4.87 ± 2.75 | 5.79 ± 3.45 | 4.72 ± 2.58 | 0.005* |
| Period of illness prior to hospitalization (days, mean ± SD) | 4.16 ± 3.28 | 5.89 ± 1.21 | 3.72 ± 2.34 | <0.001* |
*Significant, P value is subjected to difference between AKI and non-AKI patients and calculated by student-t test or Mann-Whitney U test, where appropriate. BMI: body mass index, BUN: blood urea nitrogen; AG: albumin to globulin ratio, AST: Aspartate aminotransferase, ALT: Alanine aminotransferase, ALP: Alkaline phosphatase, PT: Prothrombin time: aPTT: activated partial thromboplastin time