Fig. 1

Albumin CSF/serum ratios (A, B) and CSF concentrations (C), CSF white cell counts (D), CSF total protein (E) and CSF L-lactate (F) concentrations and IgG, IgM and IgA CSF/serum ratios (G-I) and CSF concentrations (J-L) in patients with COVID-19 and neurological symptoms. Although some parameters were more markedly or more frequently altered in the ‘B/SC subgroup’ than in patients from the ‘PN/CN/H subgroup’, the differences were not statistically significant. N indicates the number of samples tested. Note that the figure shows all samples with available data; data stratified according to disease duration at the time of LP can be found in Tables 1, 2, 3, 4, 5. Solid lines indicate medians. B/SC brain spinal cord, PN/CN/H peripheral nerve/cranial nerve/headache only; IgG/A/M immunoglobulin G/A/M, QIgG/A/M CSF/serum IgG/A/M ratios, QAlb CSF/serum albumin ratio