Melinda Magyari1,2, Hanna Joensen1, Bjarne Laursen3, Nils Koch-Henriksen1,4. 1. Department of Neurology, The Danish Multiple Sclerosis Registry, Rigshospitalet, Glostrup, Denmark. 2. Danish Multiple Sclerosis Center, Department of Neurology, Rigshospitalet, Glostrup, Denmark. 3. National Institute of Public Health, University of Southern Denmark, Copenhagen, Denmark. 4. Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark.
Abstract
OBJECTIVES: The Danish Multiple Sclerosis Registry is the oldest operative and nationwide MS registry. We present The Danish Multiple Sclerosis Registry with its history, data collection, scientific contribution, and national and international research collaboration. MATERIALS AND METHODS: Detailed description of data collection, completeness, quality optimizing procedures, funding, and legal, ethical and data protection issues are provided. RESULTS: The total number of registered cases with clinical isolated syndrome and multiple sclerosis since 1956 was by start of May 2020 30,023 of whom 16,515 cases were alive and residing in Denmark, giving a prevalence rate of about 284 per 100,000 population. The mean annual number of new cases receiving an MS diagnosis was 649 per year in the period 2010 to 2019. In total, 7,945 patients (48.1%) are receiving disease modifying therapy at the start of May 2020. CONCLUSIONS: Multiple Sclerosis registers are becoming increasingly important, not only for epidemiological research but also by quantifying the burden of the disease for the patients and society and helping health care providers and regulators in their decisions. The Danish Multiple Sclerosis Registry has served as data source for a number of scientific publications including epidemiological studies on changes in incidence and mortality, cohort studies investigating risk factors for developing MS, comorbidities and socioeconomic outcomes in the MS population, and observational studies on effectiveness of disease modifying treatments outside the narrow realms of randomized clinical trials.
OBJECTIVES: The Danish Multiple Sclerosis Registry is the oldest operative and nationwide MS registry. We present The Danish Multiple Sclerosis Registry with its history, data collection, scientific contribution, and national and international research collaboration. MATERIALS AND METHODS: Detailed description of data collection, completeness, quality optimizing procedures, funding, and legal, ethical and data protection issues are provided. RESULTS: The total number of registered cases with clinical isolated syndrome and multiple sclerosis since 1956 was by start of May 2020 30,023 of whom 16,515 cases were alive and residing in Denmark, giving a prevalence rate of about 284 per 100,000 population. The mean annual number of new cases receiving an MS diagnosis was 649 per year in the period 2010 to 2019. In total, 7,945 patients (48.1%) are receiving disease modifying therapy at the start of May 2020. CONCLUSIONS:Multiple Sclerosis registers are becoming increasingly important, not only for epidemiological research but also by quantifying the burden of the disease for the patients and society and helping health care providers and regulators in their decisions. The Danish Multiple Sclerosis Registry has served as data source for a number of scientific publications including epidemiological studies on changes in incidence and mortality, cohort studies investigating risk factors for developing MS, comorbidities and socioeconomic outcomes in the MS population, and observational studies on effectiveness of disease modifying treatments outside the narrow realms of randomized clinical trials.
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