Characteristics of the 88 patients participating in the study.

MS is multiple sclerosis, CIS is clinically isolated syndrome, EDSS is Expanded Disability Status Scale, HADS is Hospital Anxiety and Depression Scale, PICS is Perceived Involvement in the Consultation Scale, CPS is Control Preference Scale, OPTION is Observing Patient Involvement in Shared Decision Making.aMean, SD (minimum–maximum).bEncepalopathy/myelopathy (n = 10); Suspected MS (n = 9); Radiologic isolated syndrome (n = 2); Optic neuritis (n = 1); Headache (n = 1); Chronic inflammatory demyelinating polyneuropathy (n = 1); Facial spasm (n = 1). The diagnosis was provided by the physician on the case report form.cMedian (interquartile range).