Fig. 1

Flow chart over patient recruitment, cases, and controls. ^aThree patients were positive for both NMDAR and GAD65 antibodies. ^bImmunglobulin (Ig) isotype 11/3/9 (IgA/IgG/IgM), titer, median (range) 1:32 (1:10–1:1000), 2 patients were positive to both NMDAR IgM and IgA antibodies. ^cIg isotype 2/6/6 (IgA/IgG/IgM) titer, median (range) 1:10 (1:10–1:100). ^d Ig isotype 1/8/0 (IgA/IgG/IgM), titer, median (range) 1:10 (1:10–1:320). See Additional file 1 for full list of antibody isotype and endpoint titer. CASPR2 contactin-associated protein 2, GAD65 glutamic acid decarboxylase 65, Ig immunoglobulin, NMDAR N-methyl-d-aspartate receptor