The mean incidence of anti-LGI1 in Denmark is 1,1 per million compared to 3,3 per million for anti-NMDAR antibodies (NR1). The disorders may be underdiagnosed due to the lack of knowledge about the conditions and the limited availability of diagnostic tests. The group of patients with anti-LGI1 antibody associated limbic encephalitis have a male predominance and a mean age of about 60 years (variation 30–80 years). The other disorders with associated antibodies also seem to affect mostly older men.
Anti-VGKC-complex encephalitis
Anti-NMDA receptor encephalitis
Anti-Hu associated encephalitis
Anti-neurofascin demyelinating diseases
Lymphocytic meningoradiculitis
Limbic encephalitis
Powassan encephalitis
Autoimmune encephalitis