title: Registers of multiple sclerosis in Denmark.
abstract: There are two nationwide population-based registers for multiple sclerosis (MS) in Denmark. The oldest register is The Danish Multiple Sclerosis Registry (DMSR), which is an epidemiological register for estimation of prevalence and incidence of MS and survival, and for identifying exposures earlier in life that may affect the risk of MS. This register has no systematic follow-up data except for survival. The DMSR has over the years published nationwide incidence- and prevalence data from Denmark and has been involved in a number of 'historical prospective' studies to elucidate the association between a number of different environmental exposures in the past and the subsequent risk of MS. Some of these studies have been able to exonerate suspected risk factors. The other register, the nationwide Danish Multiple Sclerosis Treatment Register, is a follow-up register for all patients who have received disease-modifying treatments since 1996. It has, in particular, contributed to the knowledge of the role of antibodies against the biological drugs used for the treatment of MS.
authors.affiliation: Department of Clinical Epidemiology, University of Aarhus, Aarhus, Denmark.|The Danish Multiple Sclerosis Registry, Rigshospitalet, Copenhagen, Denmark.
authors.forename: N
authors.initials: N
authors.lastname: Koch-Henriksen
authors.affiliation: The Danish Multiple Sclerosis Registry, Rigshospitalet, Copenhagen, Denmark.|Danish Multiple Sclerosis Center, Department of Neurology, Righospitalet, Copenhagen, Denmark.
authors.forename: M
authors.initials: M
authors.lastname: Magyari
authors.affiliation: The National Institute of Public Health, University of Southern Denmark, Copenhagen, Denmark.
authors.forename: B
authors.initials: B
authors.lastname: Laursen
mesh_terms: D003718:Denmark / Q000453:epidemiology; D006801:Humans; D015994:Incidence; D009103:Multiple Sclerosis / Q000453:epidemiology* / Q000628:therapy; D015995:Prevalence; D012042:Registries
keywords: epidemiology; incidence; matching; multiple sclerosis; national registry; personal Id; prevalence