Performances of the “MS-score” And “HScore” in the diagnosis of macrophage activation syndrome in systemic juvenile idiopathic arthritis patients

Macrophage activation syndrome (MAS) is a devastating complication of systemic JIA (sJIA), seen in approximately 10–25% of the sJIA patients. A number of criteria have been proposed to differentiate between activation of sJIA and MAS, including HScore and the recently proposed MS-score. This is the first study comparing the performances of MS-score and HScore for the diagnosis of MAS in sJIA patients. Systemic JIA patients followed at Hacettepe...