Prevalence of multiple sclerosis among immigrants in Norway.
Mult Scler
; 21(6): 695-702, 2015 May.
Article
em En
| MEDLINE
| ID: mdl-25344371
ABSTRACT
BACKGROUND:
Multiple sclerosis (MS) prevalence is unevenly distributed worldwide. Immigration to Norway from countries with a lower MS prevalence is increasing. The aim of this study was to investigate MS prevalence in different immigrant populations in Norway and evaluate the effect of migrating from low- to high-risk regions of MS.METHOD:
First- and second-generation immigrants from the largest immigrant populations were identified from the 2012 Norwegian prevalence study. Prevalence of MS in different ethnic groups was compared using the standardized prevalence ratio (SPR).RESULTS:
European and North-American immigrants had the highest prevalence of MS, whereas African and Asian immigrants had the lowest. The prevalence of first-generation Iranian immigrants was not significantly different from the total Norwegian population (SPR 0.70, 95% CI 0.46-1.03). Second-generation immigrants from Pakistan (SPR 1.62, 95% CI 0.88-2.76) had a strong increase in prevalence compared to the first generation (SPR 0.13, 95% CI 0.05-0.28).CONCLUSION:
MS prevalence among immigrants in Norway in general reflects the uneven distribution worldwide. The sharp increase in prevalence in immigrants seen in one generation suggests strong environmental factors affecting the MS risk in Norway.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Sistema de Registros
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Emigrantes e Imigrantes
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Esclerose Múltipla
Tipo de estudo:
Prevalence_studies
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Prognostic_studies
/
Risk_factors_studies
Limite:
Adolescent
/
Adult
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Aged
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Aged80
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Child
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Female
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Humans
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Male
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Middle aged
País/Região como assunto:
Africa
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America do norte
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Asia
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Europa
Idioma:
En
Revista:
Mult Scler
Assunto da revista:
NEUROLOGIA
Ano de publicação:
2015
Tipo de documento:
Article
País de afiliação:
Noruega