Prevalence of multiple sclerosis in key cities of Brazil. A study in Joinville, Southern Brazil.
Marcus Vinicius Magno GonçalvesFábio SiquineliFlavio Diniz RibasAlexandre Luiz LongoClaudio Henrique do AmaralEdila Miers ChikotaPaulo Roberto WilleÁudred Cristina Biondo EboniRafaela Bittencourt LiberatoRogério Rizo MoralesJefferson BeckerMarco Aurélio Lana PeixotoPublished in: Arquivos de neuro-psiquiatria (2021)
Despite its latitude location and European colonization, the prevalence rate was below expectation. The intense internal migration from regions with lower MS prevalence rates to Joinville may have played a role in attenuating the increased risk of MS associated with latitude gradient and European ancestry. Prevalence studies in other cities from Southern Brazil with no significant internal migration and taking part in this broad project may clarify this issue.