Table 2
Laboratory and radiological features among reported paediatric COVID-19 cases
| Characteristics | Events/total patients | Mean proportion % (95% CI) | Heterogeneity I2 (%) | |
| Inflammatory marker | ||||
| CRP ↑ | 556/1165 |  | 54.2 (41.5 to 66.3) | 21.4 |
| Ferritin ↑ | 247/525 | 46.7 (32.3 to 61.7) | 46.5 | |
| LDH ↑ | 356/922 | 36.5 (26.5 to 47.8) | 35.6 | |
| Procalcitonin ↑ | 137/879 | 21.3 (12.2 to 34.5) | 24.9 | |
| Leukocytes ↑ | 138/953 | 19.9 (13.3 to 28.8) | 21.4 | |
| Lymphocytes ↓ | 359/1347 | 19.0 (12.8 to 27.1) | 0.0 | |
| ESR ↑ | 248/838 | 18.9 (11.8 to 28.9) | 0.0 | |
| IL-6 ↑ | 41/341 | 13.1 (5.5 to 28.2) | 7.1 | |
| Leucopaenia (+) | 77/1037 | 10.7 (7.7 to 14.6) | 0.0 | |
| Lymphocytes ↑ | 66/1264 | 8.2 (4.9 to 13.5) | 0.0 | |
| Neutrophils ↑ | 22/574 | 7.8 (4.8 to 12.4) | 0.0 | |
| Biomarkers for organ injury | ||||
| proBNP ↑ | 211/441 | 45.5 (28.5 to 63.5) | 49.5 | |
| Troponin ↑ | 239/703 | 39.7 (24.7 to 57.0) | 30.5 | |
| LFTs ↑ | 287/816 | 29.8 (20.3 to 41.6) | 10.8 | |
| CKMB ↑ | 82/293 | 25.5 (13.4 to 43.0) | 31.1 | |
| RFTs ↑ | 86/344 | 17.6 (7.6 to 35.6) | 23.6 | |
| Coagulopathy markers | ||||
| D-dimers ↑ | 272/711 | 35.2 (22.1 to 51.0) | 19.1 | |
| Fibrinogen ↑ | 168/438 | 17.5 (7.6 to 35.4) | 0.0 | |
| Radiological test | ||||
| Abnormal CXR/CT | 1530/3670 | 44.1 (39.5 to 48.9) | 35.0 |