Abstract
Objective. To study possible clinical markers associated with the unfavorable course of multiple sclerosis and its transition to a progressive subtype.
 Materials and methods. This prospective study included healthy volunteers and patients with relapsing-remitting multiple sclerosis (RRMS), secondary progressive multiple sclerosis (SPMS), primary progressive multiple sclerosis (PPMS). For a comprehensive clinical evaluation, the participants completed the Timed 25-Foot Walk Test (T25-FW), Nine-Hole Peg Test (9-HPT), Symbol Digit Modalities Test (SDMT), Fatigue test, and MSProDiscuss questionnaires. Then we compared the results between the groups.
 Results. We found significant differences between the groups in regard to most of the tests. Furthermore, we proposed a composite clinical score (CCS) based on T25-FW, SDMT, and 9-HPT results (for both hands).
 Discussion. Our CCS can be a useful clinical tool to determine the most likely course of multiple sclerosis at a certain timepoint.
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