Fig. 4

Correlations between blood biomarkers and changes in clinical parameters. (a) sGFAP, sNfL–ΔEDSS correlations in NMOSD, (b) sGFAP, sNfL–ΔEDSS correlations in MS, (c) sGFAP, sNfL–ΔPST correlations in NMOSD, (d) sGFAP, sNfL–ΔPST correlations in MS. EDSS = Expanded disability status scale; MS = Multiple sclerosis; NMOSD = Neuromyelitis optica spectrum disorder; PST = Processing speed test; sGFAP = Serum glial fibrillary acidic protein, sNfL = Serum neurofilament light chain.