Document Detail

Shift in the incidence of rheumatoid arthritis toward elderly patients in Finland during 1975-1990.
MedLine Citation:
PMID:  8913656     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To obtain information on changes in the age distribution of new cases of rheumatoid arthritis (RA) in Finland. METHODS: The present study covered those subjects entitled under the nationwide sickness insurance scheme to receive specially reimbursed medication for RA in 5/21 central hospital districts in Finland (population base about one million adults) in 1975, 1980, 1985, and 1990. RESULTS: During the four study years 1321 incident cases occurred, which satisfied the American Rheumatism Association 1987 classification criteria for RA. The mean age at diagnosis increased by 7.6 years from 1975 (50.2 years) to 1990 (57.8 years). No appreciable differences occurred between men and women. The incidence rates declined in the younger age groups. CONCLUSION: The epidemiology of RA is in a dynamic state. The trends may reflect marked changes in the host-environment relationship.
O Kaipiainen-Seppänen; K Aho; H Isomäki; M Laakso
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Publication Detail:
Type:  Journal Article; Multicenter Study; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Clinical and experimental rheumatology     Volume:  14     ISSN:  0392-856X     ISO Abbreviation:  Clin. Exp. Rheumatol.     Publication Date:    1996 Sep-Oct
Date Detail:
Created Date:  1997-02-20     Completed Date:  1997-02-20     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8308521     Medline TA:  Clin Exp Rheumatol     Country:  ITALY    
Other Details:
Languages:  eng     Pagination:  537-42     Citation Subset:  IM    
Department of Medicine, Kuopio University Hospital, Finland.
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MeSH Terms
Age Distribution
Aged, 80 and over
Arthritis, Rheumatoid / epidemiology*
Finland / epidemiology
Middle Aged
Sex Characteristics

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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