Table 2.
Laboratory and radiographic findings of older patients with COVID-19 on admission.
| All patients (n = 312) | Non-severe (n = 207) | Severe (n = 105) | p value | |
|---|---|---|---|---|
| White blood cell count, ×109/L | 7.5 ± 4.3 | 6.8 ± 3.9 | 12.1 ± 4.5 | 0.031 |
| Neutrophil count, ×109/L | 6.1 ± 3.6 | 5.7 ± 3.5 | 10.3 ± 5.1 | 0.039 |
| Lymphocyte count, ×109/L | 1.1 ± 0.4 | 1.9 ± 0.6 | 0.8 ± 0.4 | 0.012 |
| ＜1.1, n(%) | 191(61.2) | 109(52.7) | 82(78.1) | 0.029 |
| Haemoglobin, g/L | 120.3 ± 28.4 | 124.5 ± 32.1 | 119.4 ± 25.7 | 0.387 |
| Platelet count, ×109/L | 205.3 ± 85.6 | 233.7 ± 92.6 | 157.4 ± 95.3 | 0.002 |
| ＜125, n(%) | 64(20.5) | 10(4.83) | 54(51.4) | 0.001 |
| Prothrombin time, s | 13.5 ± 4.9 | 12.7 ± 5.4 | 14.8 ± 4.5 | 0.010 |
| Activated partial thromboplastin time, s | 35.4 ± 6.3 | 33.9 ± 5.6 | 38.7 ± 7.8 | 0.028 |
| D-dimer, mg/L | 0.7 ± 0.6 | 0.5 ± 0.3 | 4.8 ± 2.1 | 0.018 |
| Alanine transaminase, U/L | 40.5 ± 20.5 | 31.6 ± 18.9 | 48.2 ± 20.1 | 0.009 |
| Aspartate transaminase, U/L | 45.2 ± 30.6 | 40.6 ± 22.7 | 50.3 ± 29.8 | 0.005 |
| Total bilirubin, mmol/L | 18.7 ± 10.5 | 13.7 ± 9.9 | 21.2 ± 9.6 | 0.035 |
| Creatinine, μmol/L | 64.7 ± 46.7 | 52.4 ± 40.2 | 91.3 ± 41.3 | 0.003 |
| ＞133, n(%) | 21(6.73) | 4(1.93) | 17(16.2) | 0.016 |
| Potassium, mmol/L | 4.0 ± 1.1 | 3.9 ± 0.8 | 4.2 ± 1.0 | 0.535 |
| Sodium, mmol/L | 141.1 ± 9.2 | 143.0 ± 8.3 | 139.8 ± 7.9 | 0.457 |
| Creatine kinase, U/L | 85.6 ± 46.7 | 82.3 ± 38.7 | 101.2 ± 32.1 | 0.612 |
| Lactate dehydrogenase, U/L | 200.2 ± 61.2 | 150.4 ± 58.4 | 220.1 ± 42.1 | 0.652 |
| Hypersensitive troponin I, pg/mL | 8.6 ± 4.3 | 7.5 ± 5.4 | 15.3 ± 3.6 | 0.025 |
| Procalcitonin, ng/mL | 0.25 ± 0.12 | 0.16 ± 0.11 | 0.33 ± 0.20 | 0.013 |
| Serum ferritin, μg/L | 702.3 ± 200.4 | 665.4 ± 86.5 | 1203.1 ± 126.7 | 0.027 |
| Interleukin-6, pg/mL | 7.8 ± 4.6 | 6.9 ± 3.8 | 18.7 ± 4.5 | 0.001 |
| Ground-glass opacity, n(%) | 251(80.4) | 170(82.1) | 81(77.1) | 0.052 |
| Consolidation, n(%) | 163(52.2) | 70(43.5) | 93(88.6) | 0.005 |
| Bilateral pulmonary infiltration, n(%) | 231(74.0) | 156(50.0) | 75(71.4) | 0.042 |