Kaplan-Meier Curve for Time to First Confirmed Progression for (A) Propensity Score–Matched Treatment Groups and (B) the Overlap Weighting–Matched Groups. Abbreviations: AHSCT = autologous hematopoietic stem cell transplantation; DMTs = disease-modifying therapies (Beta interferons, azathioprine, Glatiramer Acetate, Mitoxantrone, Fingolimod, Natalizumab, Methotrexate, Teriflunomide, Cyclophosphamide, Dimethyl Fumarate, and Alemtuzumab); EDSS = Expanded Disability Status Scale; HR = hazard ratio; SPMS = secondary progressive multiple sclerosis.