| ARDS | Acute respiratory distress syndrome |
| CRP | C-reactive protein |
| DMARDs | Disease-modifying antirheumatic drugs |
| ESR | Erythrocyte sedimentation rate |
| ILAR criteria | International League of Associations for Rheumatology criteria for JIA |
| JADAS 71 | Juvenile arthritis disease activity score of all 71 joints |
| JIA | Juvenile idiopathic arthritis |
| MIS | Multisystem inflammatory syndrome |
| PGA | Parent global assessment of well-being |
| PhGA | Physician’s global assessment of disease activity |
| VAS | Visual analog scale |