Table 2.
Laboratory tests of patients infected with SARS-CoV-2 (N = 492).
| Laboratory tests | Patients with AKI | Patients without AKI | p value | |
|---|---|---|---|---|
| Leucocytes (×109 per L; normal range 3.5–9.5) | Mean | 9.32 (4.85-16.31) | 5.03 (3.93-6.28) | <0.001 |
| Normal | 14 (38.89%) | 352 (77.19%) | ||
| Increased | 17 (47.22%) | 27 (5.92%) | ||
| Decreased | 5 (13.89%) | 77 (16.89%) | ||
|
| ||||
| Lymphocytes (×109 per L; normal range 1.1–3.2) | Mean | 0.59 (0.36-1.23) | 1.11 (0.8-1.48) | <0.001 |
| Normal | 8 (22.22%) | 225 (49.34%) | ||
| Increased | 1 (2.78%) | 5 (1.10%) | ||
| Decreased | 27 (75%) | 226 (49.56%) | ||
|
| ||||
| Lymphocyte percentage (20-50%) | Mean | 6.6 (3.38-23.8) | 24.15 (16.7-32.4) | <0.001 |
| Normal | 9 (25%) | 289 (63.40%) | ||
| Increased | 2 (5.56%) | 4 (0.88%) | ||
| Decreased | 25 (69.44%) | 163 (35.75%) | ||
|
| ||||
| Neutrophils (×109 per L; normal range 1.8–6.3) | Mean | 7.64 (3.61-15.24) | 3.2 (2.31-4.47) | <0.001 |
| Normal | 15 (41.67%) | 354 (77.63%) | ||
| Increased | 18 (50%) | 47 (10.31%) | ||
| Decreased | 3 (8.33%) | 55 (12.06%) | ||
|
| ||||
| Neutrophil percentage (40-75%) | Mean | 87.95 (67.83-92.55) | 65.6 (56.93-74.28) | <0.001 |
| Normal | 10 (27.78%) | 337 (73.90%) | ||
| Increased | 24 (66.67%) | 111 (24.34%) | ||
| Decreased | 2 (5.56%) | 8 (1.75%) | ||
|
| ||||
| PCT (ng/L) | Mean | 0.29 (0.07-1.66) | 0.04 (0.02-0.07) | <0.001 |
| <0.5 | 26 (72.22%) | 440 (96.49%) | ||
| 0.5-2 | 5 (13.89%) | 11 (2.41%) | ||
| 2-10 | 5 (13.89%) | 4 (0.88%) | ||
| ≥10 | 0.00 | 1 (0.22%) | ||
|
| ||||
| CRP (mg/L) | Mean | 45.97 (15.98-107.73) | 15.9 (3.61-49.23) | <0.001 |
| 0-10 | 8 (22.22%) | 182 (39.91%) | ||
| 10-25 | 5 (13.89%) | 85 (18.64%) | ||
| 25-50 | 7 (19.44%) | 77 (16.89%) | ||
| 50-100 | 6 (16.67%) | 78 (17.11%) | ||
| ≥100 | 10 (27.78%) | 34 (7.46%) | ||
Data are median (IQR), or n/N (%), where N is the total number of patients with available data. p values comparing patients with AKI and without AKI are from chi-square or Mann–Whitney U test. SARS-CoV-2 = 2019 novel coronavirus; AKI = acute kidney injury; PCT = procalcitonin; CRP = C-reactive protein.