Ferritin to Erythrocyte Sedimentation Rate Ratio: Simple Measure to Identify Macrophage Activation Syndrome in Systemic Juvenile Idiopathic Arthritis.
Esraa M A EloseilyFrancesca MinoiaCourtney B CrayneTimothy BeukelmanAngelo RavelliRandy Q CronPublished in: ACR open rheumatology (2019)
The ferritin:ESR ratio is a practical tool for diagnosing MAS among sJIA patients, and serum ferritin alone is a remarkable screening tool for identifying MAS among febrile hospitalized children.