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Shift in the incidence of rheumatoid arthritis toward elderly patients in Finland during 1975-1990.
Clin Exp Rheumatol. 1996 Sep-Oct; 14(5):537-42.CE

Abstract

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.

Authors+Show Affiliations

Department of Medicine, Kuopio University Hospital, Finland.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Multicenter Study
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

8913656

Citation

Kaipiainen-Seppänen, O, et al. "Shift in the Incidence of Rheumatoid Arthritis Toward Elderly Patients in Finland During 1975-1990." Clinical and Experimental Rheumatology, vol. 14, no. 5, 1996, pp. 537-42.
Kaipiainen-Seppänen O, Aho K, Isomäki H, et al. Shift in the incidence of rheumatoid arthritis toward elderly patients in Finland during 1975-1990. Clin Exp Rheumatol. 1996;14(5):537-42.
Kaipiainen-Seppänen, O., Aho, K., Isomäki, H., & Laakso, M. (1996). Shift in the incidence of rheumatoid arthritis toward elderly patients in Finland during 1975-1990. Clinical and Experimental Rheumatology, 14(5), 537-42.
Kaipiainen-Seppänen O, et al. Shift in the Incidence of Rheumatoid Arthritis Toward Elderly Patients in Finland During 1975-1990. Clin Exp Rheumatol. 1996 Sep-Oct;14(5):537-42. PubMed PMID: 8913656.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Shift in the incidence of rheumatoid arthritis toward elderly patients in Finland during 1975-1990. AU - Kaipiainen-Seppänen,O, AU - Aho,K, AU - Isomäki,H, AU - Laakso,M, PY - 1996/9/1/pubmed PY - 1996/9/1/medline PY - 1996/9/1/entrez SP - 537 EP - 42 JF - Clinical and experimental rheumatology JO - Clin Exp Rheumatol VL - 14 IS - 5 N2 - 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. SN - 0392-856X UR - https://www.unboundmedicine.com/medline/citation/8913656/Shift_in_the_incidence_of_rheumatoid_arthritis_toward_elderly_patients_in_Finland_during_1975_1990_ L2 - http://www.diseaseinfosearch.org/result/592 DB - PRIME DP - Unbound Medicine ER -