A population study of rheumatoid factor in Iceland. A 5-year follow-up of 50 women with rheumatoid factor (RF).
The subject of this paper is a 5-year follow-up of 50 women found with Rose-Waaler Titre greater than or equal 1 : 10 or with a Acryl Fixation Titre greater than or equal 1 : 10 in a general health survey conducted in the Reykjavik area in 1968-1969. The average annual incidence of RA was 2.3 percent. Of four women who died during the follow-up period, three were amongst those with the highest titres. Two of the decreased had cancer mammae and one had lung cancer. Changes in RF-titres and New York Criteria are also discussed. It is suggested that RF-positives could be divided in three different riskgroups.
D000328:Adult; D001172:Arthritis, Rheumatoid / Q000453:epidemiology / Q000276:immunology* / Q000401:mortality; D005260:Female; D005500:Follow-Up Studies; D006306:Health Surveys; D006801:Humans; D007055:Iceland; D007841:Latex Fixation Tests; D008875:Middle Aged; D012217:Rheumatoid Factor
D012217:Rheumatoid Factor