Table 3. Laboratory parameters according to COVID-19 severity.
| Laboratory parameter | Mild COVID-19 group (mean±SD) | Moderate COVID-19 group (mean±SD) | Severe severity COVID-19 group (mean±SD) | Critical severity COVID-19 group (mean±SD) | p value |
|---|---|---|---|---|---|
| Red blood cell distribution width‐CV (%) | 13.2±1.9 | 13.5±0.8 | 13.6±1.19 | 14.4±1.16 | 0.000* |
| Mean platelet volume, fl | 9.9±0.8 | 10.1±1.08 | 10.2±1.08 | 10.4±1.2 | 0.044* |
| PVI | 5.01±1.8 | 5.4±2.04 | 5.8±2.02 | 7.8±4.4 | 0.000* |
| Total protein (65‐85 g/L) | 73±3.3 | 72.4±5.5 | 68.8±4.21 | 67.7±4.8 | 0.048* |
| Albumin (40‐55 g/L) | 40.8±3.3 | 40.2±4.2 | 40.1±4.1 | 36.2±3.8 | 0.000* |
| LDH, U/L | 230.4±70 | 240.7±65 | 264.8±75 | 270.4±85 | 0.000* |
| C‐reactive protein(0-6 mg/L) | 26.8±4.2 | 43.7±7.2 | 57.7±6.8 | 102.5±20.7 | 0.010* |
| Platelet x109/L | 219.7±104 | 203±52.6 | 201.6±80 | 200±68 | 0.704 |
| WBC (4.0‐10.0 × 109/L) | 7.6±3.1 | 7.8±4 | 8±3.5 | 9.6±3.8 | 0.023* |
| Neutrophil (2.0‐6.0×109/L) | 4.1±1.23 | 5.7±3.5 | 6.1±3.3 | 6.8±3.9 | 0.013* |
| Lymphocyte (1.1‐3.2×109/L) |
1.9±0.8 | 1.6±0.9 | 1.5±0.6 | 1.19±0.8 | 0.000* |
SD = standard deviation; LDH = L-lactate dehydrogenase; WBC = white blood count; PVI = platelet volume index; Kruskal-Wallis H test was used on statistical analysis; *p<0.05 was considered significant