Multiple sclerosis and NMOSD in Japan by the Fifth Nationwide Survey

What is it about?

Comparing the results of the fifth nation-wide survey to those of previous nation-wide survey in Japan for multiple sclerosis and neuromyelitis optica spectrum disorder, this article revealed the substantial differences and changes in profiles of these disorders especially with regards to the prevalence as well as disability.

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Why is it important?

Both MS and NMOSD could change in their features including clinical manifestations and prognosis according to the socioeconomic status or hygiene in a region. Nation-wide surveys in Japan had been conducted for more than 30 years by keeping the good quality of data collection by skilled neurologists as well as unbiased analyses of those data. Thus, the changes revealed here is reliable and would be of help to plan for treatments or prevention, which could lead to the cure of those disorders.

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