title: Conclusion: National incidence and risk factor assessments may become a basis for the evaluation of prevention trials – prospects from the Third Nordic MS Symposium.
abstract: This symposium started with an overview of recent incidence and prevalence data from the Scandinavian national registers and continued with a critical analysis of several alleged risk factors for MS. These risk factors are constantly changing and therefore might explain current incidence changes. In addition, they may be the subject of preventive measures.
authors.affiliation: Section of Clinical Neuroscience and Rehabilitation, Institute of Neuroscience and Physiology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
authors.forename: O
authors.initials: O
authors.lastname: Andersen
mesh_terms: D002986:Clinical Trials as Topic; D006801:Humans; D015994:Incidence; D009103:Multiple Sclerosis / Q000453:epidemiology* / Q000517:prevention & control*; D015995:Prevalence; D012107:Research Design; D012307:Risk Factors; D012537:Scandinavian and Nordic Countries / Q000453:epidemiology
keywords: incidence; multiple sclerosis; prevalence; prevention; risk factors