NEFL and myeloid sarcoma: Plasma NfL decreased by −0.15 pg/mL (95% confidence intervals (CI): −0.20 to −0.09, P < 0.001) and −0.17 pg/mL (95%CI: −0.22 to −0.12, P < 0.001) per liter increase in BV in controls and MS cases, respectively (Fig. 1).