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Cited by 1,163

The DOI matches its Crossref record; 56 of the 56 references it cites were found in a registry or an index.

The natural history of multiple sclerosis:a geographically based study

Open access
Cottrell, D. A., Kremenchutzky, M., Rice, G. P. A., Koopman, W. J., Hader, W., Baskerville, J., Ebers, G. C.·1999·Brain

Abstract

We report a natural history study of 216 patients with primary progressive (PP)- multiple sclerosis defined by at least 1 year of exacerbation-free progression at onset. This represents 19.8% of a largely population-based patient cohort having a mean longitudinal follow-up of 23 years. This subgroup of PP-multiple sclerosis patients had a mean age of onset of 38.5 years, with females predominating by a ratio of 1.3:1.0. The rate of deterioration from disease onset was substantially more rapid than for relapsing-remitting multiple sclerosis, with a median time to disability status score (DSS) 6 and DSS 8 of 8 and 18 years, respectively. Forty-nine percent of patients were followed through to death. Examination of the early disease course revealed two groups with adverse prognostic profiles. Firstly, a shorter time to reach DSS 3 from onset of PP-multiple sclerosis significantly adversely influenced time to DSS 8. Second, involvement of three or more neurological systems at onset resulted in a median time to DSS 10 of 13.5 years in contrast to PP-multiple sclerosis patients with one system involved at onset where median time to death from multiple sclerosis was 33.2 years. However, age, gender and type of neurological system involved at onset appeared to have little influence on prognosis. Life expectancy, cause of mortality and familial history profile were similar in PP-multiple sclerosis and non-PP-multiple sclerosis (all other multiple sclerosis patients from the total population). From clinical onset, rate of progression was faster in the PP-multiple sclerosis group than in the secondary progressive (SP)-multiple sclerosis group. When the rates of progression from onset of the progressive phase to DSS 6, 8 and 10 were compared, SP-multiple sclerosis had a more rapid progressive phase. A substantial minority (28%) of the PP-multiple sclerosis cohort had a distinct relapse even decades after onset of progressive deterioration. These studies establish natural history outcomes for the subgroup of multiple sclerosis patients with primary progressive disease.

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Metadata

Authors
Cottrell, D. A., Kremenchutzky, M., Rice, G. P. A., Koopman, W. J., Hader, W., Baskerville, J., & Ebers, G. C.
Venue
Brain
Published
1999-04
Volume
122
Issue
4
Pages
625-639
ISSN
  • 0006-8950 (ISSN-L)
  • 1460-2156
OpenAlex
W2145185401
Cited by
1,163
References
56
FWCI
26.68
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: The natural history of multiple sclerosis:a geographically based study. https://app.cochat.ai/papers/10.1093/brain/122.4.625
The paper
Cottrell, D. A., Kremenchutzky, M., Rice, G. P. A., Koopman, W. J., Hader, W., Baskerville, J., & Ebers, G. C. (1999). The natural history of multiple sclerosis:a geographically based study. Brain. https://doi.org/10.1093/brain/122.4.625

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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