CHI3L1 and myeloid sarcoma: We assessed correlations between anthropometric measurements (BMI and WHR), plasma and CSF adipokine levels, serum vitamin D levels and MS severity indicators, including clinical scores (EDSS, MSSS), brain MRI metrics (LV, WBV) and fluid biomarkers (NfL, GFAP and CHI3L1; table 5, online supplemental table 4 for CSF values).