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Co-morbidities increase the risk of disability pension among MS patients: a population-based nationwide cohort study.
Department of Clinical Neuroscience, Karolinska Institutet.ORCID iD: 0000-0001-6138-6427
Department of Clinical Neuroscience, Karolinska Institutet.
Department of Medical and Health Sciences, Linköping University.
Department of Clinical Neuroscience, Karolinska Institutet.
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2014 (English)In: BMC neurology, ISSN 1471-2377, Vol. 14, 117Article in journal (Refereed) Published
Abstract [en]

BACKGROUND: Multiple sclerosis (MS) is a chronic and often disabling disease. In 2005, 62% of the MS patients in Sweden aged 16-65 years were on disability pension. The objective of this study is to investigate whether the presence of common co-morbidities increase MS patients' risk for disability pension.

METHODS: This population-based cohort study included 4 519 MS patients and 4 972 174 non-MS patients who in 2005 were aged 17-64 years, lived in Sweden, and were not on disability pension. Patients with MS were identified in the nationwide in- and outpatient registers, while four different registers were used to construct three sets of measures of musculoskeletal, mental, and cardiovascular disorders. Time-dependent proportional hazard models with a five-year follow up were performed, adjusting for socio-demographic factors.

RESULTS: All studied disorders were elevated among MS patients, regardless of type of measure used. MS patients with mental disorders had a higher risk for disability pension than MS patients with no such co-morbidities. Moreover, mental disorders had a synergistic influence on MS patients' risk for disability pension. These findings were also confirmed when conducting sensitivity analyses. Musculoskeletal disorders appeared to increase MS patients' risk for disability pension. The results with regard to musculoskeletal disorders' synergistic influence on disability pension were however inconclusive. Cardiovascular co-morbidity had no significant influence on MS-patients' risk for disability pension.

CONCLUSIONS: Co-morbidities, especially mental disorders, significantly contribute to MS patients' risk of disability pension, a finding of relevance for MS management and treatment.

Place, publisher, year, edition, pages
BioMed Central, 2014. Vol. 14, 117
Keyword [en]
Multiple sclerosis, Co-morbidity, Disability pension, Sick leave, Synergistic effects, Insurance medicine
National Category
Public Health, Global Health, Social Medicine and Epidemiology
Identifiers
URN: urn:nbn:se:rkh:diva-1583DOI: 10.1186/1471-2377-14-117PubMedID: 24894415OAI: oai:DiVA.org:rkh-1583DiVA: diva2:801577
Available from: 2015-04-09 Created: 2015-03-17 Last updated: 2015-04-22Bibliographically approved

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CiteExportLink to record
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Citation style
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