Laboratory findings in patients with COVID-19 pneumonia
| Characteristics | Total | Deceased | Survivors | p-value |
| Patients | 179 | 21 | 158 | |
| White blood cells ×109 cells·L−1 | 5.3 (3.9–7.8) | 8.9 (4.8–13.1) | 5.1 (3.8–7.3) | 0.003 |
| Neutrophils ×109 cells·L−1 | 4.0 (2.7–6.6) | 7.7 (3.0–11.5) | 3.9 (2.6–6.1) | 0.007 |
| Lymphocytes ×109 cells·L−1 | 0.8 (0.6–1.1) | 0.7 (0.5–0.8) | 0.8 (0.6–1.1) | 0.046 |
| T-cell subsets | ||||
| CD3+CD4+ cells·μL−1 | 114.3 (62.9–195.3) | 68.0 (55.1–148.8) | 128.3 (73.5–201.7) | 0.066 |
| CD3+CD8+ cells·μL−1 | 75.5 (45.5–125.0) | 47.9 (25.4–73.8) | 104.5 (58.5–142.7) | 0.001 |
| C-reactive protein mg·L−1 | 39.8 (20.6–97.8) | 86.4 (37.9–105.5) | 36.0 (19.3–91.0) | 0.012 |
| Procalcitonin ng·mL−1 | 0.1 (0.0–0.2) | 0.1 (0.1–0.5) | 0.1 (0.0–0.2) | 0.013 |
| Cardiac troponin I ng·mL−1 | 0.0 (0.0–0.1) | 0.1 (0.0–0.8) | 0.0 (0.0–0.0) | <0.001 |
| Myoglobin ng·mL−1 | 36.9 (18.4–124.0) | 162.0 (48.5–342.8) | 32.3 (15.5–60.3) | <0.001 |
| Brain natriuretic peptide pg·mL−1 | 645.0 (110.0–1504.0) | 970.0 (620.5–3531.0) | 390.0 (58.0–1118.5) | 0.004 |
| Albumin g·L−1 | 33.2 (30.7–36.4) | 33.2 (31.2–35.6) | 33.0 (30.6–38.1) | 0.764 |
| Total bilirubin μmol·L−1 | 8.9 (6.6–12.5) | 9.6 (8.3–16.3) | 8.7 (6.5–12.3) | 0.146 |
| Direct bilirubin μmol·L−1 | 2.5 (1.8–3.9) | 3.1 (2.3–6.1) | 2.4 (1.8–3.8) | 0.101 |
| Alanine aminotransferase U·L−1 | 22.0 (15.0–40.0) | 27.0 (20.0–37.0) | 22.0 (14.0–40.5) | 0.233 |
| Aspartate aminotransferase U·L−1 | 30.0 (19.0–43.0) | 40.0 (27.0–61.5) | 27.5 (19.0–42.0) | 0.010 |
| γ-Glutamyltranspeptidase U·L−1 | 29.0 (17.0–52.5) | 23.0 (16.5–42.0) | 29.0 (17.0–54.5) | 0.518 |
| Creatinine μmol·L−1 | 66.5 (55.8–82.0) | 95.0 (63.0–112.0) | 65.0 (55.0–80.0) | 0.001 |
| D-dimer mg·L−1 | 0.5 (0.3–1.7) | 1.1 (0.4–10.5) | 0.5 (0.3–1.2) | 0.011 |
| Prothrombin time s | 13.7 (12.4–15.4) | 13.9 (12.3–16.3) | 13.7 (12.4–15.2) | 0.758 |
| Activated partial thromboplastin time s | 35.6 (31.0–39.4) | 37.8 (30.8–41.5) | 35.3 (30.9–39.1) | 0.383 |
| PaO2 mmHg | 72.0 (57.0– 88.0) | 56.0 (49.0 –71.0) | 74.5 (59.0–92.0) | 0.001 |
| PaCO2 mmHg | 37.0 (33.0– 41.0) | 34.0 (29.0–41.0) | 37.0 (34.0–41.0) | 0.068 |
| PaO2:FIO2 mmHg | 249.6±106.1 | 185.5±64.8 | 261.5±108.2 | 0.002 |
Data are presented as n, median (interquartile range) or mean±sd, unless otherwise stated. PaO2: arterial oxygen tension; PaCO2: arterial carbon dioxide tension; FIO2: inspiratory oxygen fraction.