Prevalence (per 100,000 population) of autoimmune encephalitis sub-groups (A). Incidence (per 100,000 person-years) of autoimmune encephalitis sub-groups (B). Trends in incident rates per 100,000 person-years) of autoimmune encephalitis, definite autoimmune encephalitis (with CNS specific antibodies), autoimmune limbic encephalitis, ADEM, probable autoimmune encephalitis, Hashimoto’s encephalitis and infectious encephalitis (1995–2005 and 2006–2015) (C).
Key: Ab, antibody; AE: autoimmune encephalitis; ADEM, Acute disseminated encephalo-myelitis