Treatment Escalation vs Immediate Initiation of Highly Effective Treatment for Patients With Relapsing-Remitting Multiple Sclerosis

Treatment strategies for relapsing-remitting multiple sclerosis (RRMS) vary markedly between Denmark and Sweden. The difference in the association of these national strategies with clinical outcomes is unknown.To investigate the association of national differences in disease-modifying treatment (DMT) strategies for RRMS with disability outcomes.This cohort study used data on 4861 patients from the Danish and Swedish national multiple sclerosis...