Baseline demographic and clinical data in patients unmatched and matched by the propensity score.

CIS, clinical isolated syndrome; EDSS, Expanded Disability Status Scale; MS, multiple sclerosis; PPMS, primary progressive multiple sclerosis; RRMS, relapsing-remitting multiple sclerosis; SD, standard deviation; SPMS, secondary progressive multiple sclerosis.CIS：临床孤立综合征（clinical isolated syndrome）；EDSS：扩展残疾状态量表（Expanded Disability Status Scale）；MS：多发性硬化（multiple sclerosis）；PPMS：原发进展型多发性硬化（primary progressive multiple sclerosis）；RRMS：复发缓解型多发性硬化（relapsing-remitting multiple sclerosis）；SD：标准差（standard deviation）；SPMS：继发进展型多发性硬化（secondary progressive multiple sclerosis）。