Multiple sclerosis in Västerbotten county, northern Sweden
One out of several distinguishing features of multiple sclerosis (MS) is the epidemiological variation of geographic distribution. Population-based studies on the prevalence and incidence of MS in Sweden have previously been performed only in Göteborg. Another feature of MS is the clinical variation...
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Umeå universitet, Klinisk neurovetenskap
2003
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ftumeauniv:oai:DiVA.org:umu-140313 2023-10-09T21:54:37+02:00 Multiple sclerosis in Västerbotten county, northern Sweden Sundström, Peter 2003 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-140313 eng eng Umeå universitet, Klinisk neurovetenskap Umeå : Umeå universitet Umeå University medical dissertations, 0346-6612 848 http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-140313 urn:isbn:91-7305-467-4 info:eu-repo/semantics/openAccess multiple sclerosis epidemiology prevalence incidence onset symptoms disability sick leave professional assistance Epstein-Barr virus and HHV-6 Behavioral Sciences Biology Etologi Doctoral thesis, comprehensive summary info:eu-repo/semantics/doctoralThesis text 2003 ftumeauniv 2023-09-22T13:49:53Z One out of several distinguishing features of multiple sclerosis (MS) is the epidemiological variation of geographic distribution. Population-based studies on the prevalence and incidence of MS in Sweden have previously been performed only in Göteborg. Another feature of MS is the clinical variation between individuals. To a large extent data on the clinical characteristics of MS come from studies on cases frequenting MS clinics and therefore, may be biased. Also rare are population-based studies of the consequences of MS-related incapacity on socioeconomic factors. As for MS aetiology, both environment and genes are involved. Human herpesviruses are often the main suspected environmental aetiological agents. Our aim was to estimate the prevalence of MS in Västerbotten County for 1 January 1990, the incidence during a 10-year period 1988-97, and the prevalence 31 December 1997; and also to present detailed clinical data including onset symptoms and the disability distribution for the latter two MS populations. Furthermore, we wanted to estimate the prevalence of sick leave, professional assistance, and housing; and also, to study the risk factors for sick leave. In order to investigate the association between MS and human herpesviruses, samples were identified in two regional population-based serumbank registers. This linkage identified samples collected from before MS-onset in 73 MS cases and after MS onset in 161 cases The prevalence and incidence populations were identified through multiple sources. Diagnostic ascertainment, the reliability of clinical data, and additional information were assured from a questionnaire with follow-up interview and neurological examination. The onset adjusted crude prevalence of MS was 125/100,000 (95% CI: 112-140) in January 1990, and 154/100,000 (95% Cl: 139-170) in December 1997. The increase was mainly attributable to a higher incidence than mortality. The crude incidence rate 1988-97 was 5.2/100,000 (95% CI: 4.4-6.2). The disability distribution in the 1997 prevalence ... Doctoral or Postdoctoral Thesis Northern Sweden Umeå University: Publications (DiVA) |
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Umeå University: Publications (DiVA) |
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English |
topic |
multiple sclerosis epidemiology prevalence incidence onset symptoms disability sick leave professional assistance Epstein-Barr virus and HHV-6 Behavioral Sciences Biology Etologi |
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multiple sclerosis epidemiology prevalence incidence onset symptoms disability sick leave professional assistance Epstein-Barr virus and HHV-6 Behavioral Sciences Biology Etologi Sundström, Peter Multiple sclerosis in Västerbotten county, northern Sweden |
topic_facet |
multiple sclerosis epidemiology prevalence incidence onset symptoms disability sick leave professional assistance Epstein-Barr virus and HHV-6 Behavioral Sciences Biology Etologi |
description |
One out of several distinguishing features of multiple sclerosis (MS) is the epidemiological variation of geographic distribution. Population-based studies on the prevalence and incidence of MS in Sweden have previously been performed only in Göteborg. Another feature of MS is the clinical variation between individuals. To a large extent data on the clinical characteristics of MS come from studies on cases frequenting MS clinics and therefore, may be biased. Also rare are population-based studies of the consequences of MS-related incapacity on socioeconomic factors. As for MS aetiology, both environment and genes are involved. Human herpesviruses are often the main suspected environmental aetiological agents. Our aim was to estimate the prevalence of MS in Västerbotten County for 1 January 1990, the incidence during a 10-year period 1988-97, and the prevalence 31 December 1997; and also to present detailed clinical data including onset symptoms and the disability distribution for the latter two MS populations. Furthermore, we wanted to estimate the prevalence of sick leave, professional assistance, and housing; and also, to study the risk factors for sick leave. In order to investigate the association between MS and human herpesviruses, samples were identified in two regional population-based serumbank registers. This linkage identified samples collected from before MS-onset in 73 MS cases and after MS onset in 161 cases The prevalence and incidence populations were identified through multiple sources. Diagnostic ascertainment, the reliability of clinical data, and additional information were assured from a questionnaire with follow-up interview and neurological examination. The onset adjusted crude prevalence of MS was 125/100,000 (95% CI: 112-140) in January 1990, and 154/100,000 (95% Cl: 139-170) in December 1997. The increase was mainly attributable to a higher incidence than mortality. The crude incidence rate 1988-97 was 5.2/100,000 (95% CI: 4.4-6.2). The disability distribution in the 1997 prevalence ... |
format |
Doctoral or Postdoctoral Thesis |
author |
Sundström, Peter |
author_facet |
Sundström, Peter |
author_sort |
Sundström, Peter |
title |
Multiple sclerosis in Västerbotten county, northern Sweden |
title_short |
Multiple sclerosis in Västerbotten county, northern Sweden |
title_full |
Multiple sclerosis in Västerbotten county, northern Sweden |
title_fullStr |
Multiple sclerosis in Västerbotten county, northern Sweden |
title_full_unstemmed |
Multiple sclerosis in Västerbotten county, northern Sweden |
title_sort |
multiple sclerosis in västerbotten county, northern sweden |
publisher |
Umeå universitet, Klinisk neurovetenskap |
publishDate |
2003 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-140313 |
genre |
Northern Sweden |
genre_facet |
Northern Sweden |
op_relation |
Umeå University medical dissertations, 0346-6612 848 http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-140313 urn:isbn:91-7305-467-4 |
op_rights |
info:eu-repo/semantics/openAccess |
_version_ |
1779318281893576704 |