Table 1
Results of aquaporin-4 (AQP4) antibody assays in 46 serum samples
*High risk NMO includes bilateral or recurrent optic neuritis and longitudinal extensive transverse myelitis; †A and B represent the 2 institutions where each of the tests were performed; ‡Among 11 discordant results between CIIFA A and CIIFA B, 8 of the results performed at institution B using the inhouse CIIFA could not provide a conclusive fluorescence pattern due to poor quality of the preparation of cellular substrate.
Abbreviations: NMO, neuromyelitis optica; MS, multiple sclerosis; OND, other neurological diseases; CIIFA, cell-based indirect immunofluorescence assay; FIPA, fluorescence immunoprecipitation assay.