Table 3.
The laboratory findings of the COVID-19 patients included in this study, based on acute kidney injury (AKI) status
| Laboratory findingsa | Total (n = 770) | AKI (–) (n = 678) | AKI (+) (n = 92) | p value |
|---|---|---|---|---|
| Hemoglobin, g/dl | 13 (2.4) | 13.2 (2.5) | 12.4 (2.5) | < 0.001c |
| Platelets, /μl | 210,000 (110,250) | 209,000 (108,000) | 215,500 (113,475) | 0.477c |
| White blood cells, /μl | 6300 (3577.5) | 6300 (3360) | 6380 (5947.5) | 0.317c |
| Blood urea nitrogen, mg/dl | 15 (10) | 14 (9) | 24 (19.8) | < 0.001c |
| Glucose, mg/dl | 115 (36) | 114 (33) | 130.5 (65.8) | 0.001c |
| Aspartate aminotransferase, U/l | 27 (21) | 27 (20) | 32.5 (33.3) | 0.198c |
| Alanine aminotransferase, U/l | 22 (20) | 22 (20) | 20.5 (21.5) | 0.297c |
| Gamma-glutamyl transferase, U/l | 29 (39) | 28 (36) | 38 (53) | 0.009c |
| Alkaline phosphatase, U/l | 70 (36) | 68 (33) | 88 (63.3) | < 0.001c |
| Lactate dehydrogenase, U/l | 253 (121) | 246 (116) | 289 (131) | < 0.001c |
| Total protein, g/dl | 7.5 ± 4.8 | 7.6 ± 5.2 | 6.8 ± 0.8 | 0.162b |
| Albumin, g/dl | 4.5 ± 4.9 | 4.7 ± 5.2 | 3.5 ± 0.7 | 0.035b |
| C-reactive protein, mg/l | 48 (77.1) | 46 (73) | 74.4 (90.8) | < 0.001c |
| Ferritin, μg/L | 329 (524.5) | 326 (479.5) | 384.5 (898.5) | 0.071c |
| d-Dimer, μg/ml | 790 (1037.5) | 730 (917.5) | 1230 (1670) | < 0.001c |
| Troponin, ng/ml | 7 (15) | 6 (10) | 34 (54.5) | < 0.001c |
| Pro-Brain natriuretic peptide, pg/ml | 110.5 (537.8) | 85 (297.5) | 1100 (3667.5) | < 0.001c |
| Fibrinogen, mg/dl | 528.1 ± 164.6 | 526 ± 163.9 | 541.5 ± 169.4 | 0.427b |
| International normalized ratio | 1 (0.1) | 1 (0.1) | 1 (0.2) | < 0.001c |
| Activated partial thromboplastin time | 29 ± 5 | 29 ± 5 | 30 ± 7 | 0.049b |
| Creatinine, mg/dl | 1.1 (1.1) | 1.1 (1.1) | 1.5 (1.5) | < 0.001c |
p values in bold indicate statistical significance
aMedian (IQR) were expressed for non-normally distributed data, mean ± SD were were expressed for normally distributed data
1Student’s t test, 2 Mann–Whitney U test