ArticleNeurology2025
Nicotine, Alcohol Consumption, and Risk of Myasthenia Gravis: Results From the Swedish Nationwide GEMG Study.
Article in Neurology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- Association between obesity and subsequent risk of myasthenia gravis: a nationwide population-based cohort study.Acta neurologica Belgica · 2026Article
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Authors and funding
17 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND AND
objectivesMyasthenia gravis (MG), an autoimmune disease characterized by fluctuating muscle weakness, is believed to result from complex gene-environment interactions, yet few risk factors have been identified. The objective of this study was to determine the effect of nicotine and alcohol on MG disease risk.
methodsThe Genes and Environment in Myasthenia Gravis study is a Swedish, nationwide cross-sectional case-control study where prevalent patients with MG were invited to submit an extensive questionnaire on lifestyle and environment. Data collection took place between November 2018 and August 2019, and cases were matched by sex and year of birth to population controls. Year of disease onset was used as index year. Associations between use of alcohol, tobacco smoke, Swedish snuff, and MG risk were investigated using multivariable logistic regression.
resultsA total of 1,067 patients with MG (mean age at onset 48 (SD 21) years, 53% female) were matched to 2,087 controls. Any alcohol consumption was associated with a lower MG risk compared with not drinking at all (odds ratio [OR] 0.48, 95% CI 0.39-0.59, DISCUSSION: We observed an inverse correlation of MG risk and alcohol consumption. Furthermore, smoking and the use of Swedish snuff at disease onset were positively associated with EOMG. We recognize limitations related to retrospective data and limited number of available controls. However, multiple sensitivity analyses were performed supporting the robustness of our results.
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