Clinical features, laboratory or radiological findings and treatment outcomes were compared between anti-LGI1 encephalitis (LGI1 (+) and non anti-LGI1 encephalitis (LGI1 (-)). Results: Anti-NMDA receptor (N-methyl-D-aspartate) encephalitis and antibody-negative AE together accounted for the highest rate 43.1%, followed by anti-LGI1 encephalitis 10.3% and finally anti GABA receptor encephalitis 3.45%.