Table 2. Comparison of the clinical and laboratory characteristics between patient groups after PSM.
The table shows that there were significant differences in baseline RDW, serum albumin and PLR between the two groups after PSM.
| Variables | No-CA-AKI group (n = 100) | CA-AKI group (n = 25) | P value |
|---|---|---|---|
| Clinical Characteristics | |||
| Age (years) | 71.5 (36.00, 89.00) | 72 (40.00, 88.00) | 0.793 |
| Male [n (%)] | 66 (66.00) | 17 (68.00) | 0.850 |
| Diabetes [n (%)] | 26 (26.00) | 4 (16.00) | 0.433 |
| Hypertension [n (%)] | 51 (51.00) | 11 (44.00) | 0.656 |
| coronary heart disease [n (%)] | 19 (19.00) | 5 (20.00) | 1.000 |
| Smoking [n(%)] | 43 (43.00) | 11 (44.00) | 1.000 |
| Statins [n(%)] | 45 (45.00) | 7 (28.00) | 0.173 |
| ACEI/ARB [n(%)] | 19 (19.00) | 4 (16.00) | 1.000 |
| Total amount of contrast (ml, x ± s) | 86.23 ± 17.48 | 85.93 ± 19.91 | 0.940 |
| Laboratory characteristics | |||
| Baseline serum creatinine (µmol/L, M(1/4, 3/4)) | 83.5 (66.0,113.3) | 95.0 (85.00, 130.50) | 0.020 |
| Baseline eGFR (ml⋅ min symbol−1⋅ (1.73 m 2) symbol−1) | 73.25 (52.65,87.52) | 61.12 (47.73,74.44) | 0.019 |
| Hemoglobin (g/L) | 126.0 (113.0, 137.0 ) | 112.0 (93.0,138.5 ) | 0.058 |
| Red cell distribution width (%) | 13.30 (12.70, 13.90) | 15.10 (13.30, 16.35) | <0.0001 |
| Red blood cell count (×1012/L) | 4.24 ± 0.62 | 4.12 ± 0.79 | 0.411 |
| White blood cell count (×109/L) | 8.10 (6.83, 10.30) | 7.60 (5.35, 8.55) | 0.053 |
| Total serum protein (g/L, x ± s) | 69.31 ± 8.12 | 68.46 ± 8.38 | 0.644 |
| Albumin (g/L) | 37.50 (34.90,40.53) | 33.90 (30.80, 38.55 ) | 0.005 |
| Total cholesterol (mmol/L) | 4.34 (3.75, 5.26) | 3.92 (3.43, 5.37) | 0.527 |
| Triglyceride (mmol/L) | 1.21 (0.85, 1.64) | 1.31 (0.73, 1.69) | 0.888 |
| LDL-C (mmol/L) | 2.51 (1.91, 3.21 ) | 2.34 (1.93, 3.42 ) | 0.672 |
| HDL-C (mmol/L) | 0.96 (0.82, 1.13 ) | 0.94 (0.76, 1.06 ) | 0.573 |
| Uric acid (µmol/L) | 350.0 (283.0, 421.0) | 357.00 (289.8, 465.00) | 0.375 |
| Glucose (mmol/L) | 5.60 (5.13, 6.60) | 5.40 (4.70, 6.60) | 0.222 |
| NLR | 2.55 (1.86,3.88) | 3.42 (1.87,5.81) | 0.121 |
| PLR | 111.73 (85.82,180.46) | 148.72 (111.51,304.22) | 0.009 |
Notes.
Abbreviations
- CA-AKI
- contrast-associated acute kidney injury
- eGFR
- estimated glomerular filtration rate
- ACEI/ARB
- angiotensin-converting enzyme inhibitor/angiotensin receptor blocker
- LDL-C
- high-density lipoprotein cholesterol
- HDL-C
- low-density lipoprotein cholesterol
- NLR
- neutrophil to lymphocyte ratio
- PLR
- platelet to lymphocyte ratio