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dc.contributor.authorVidem, Vibeke
dc.contributor.authorThomas, Ranjeny
dc.contributor.authorBrown, Matthew A
dc.contributor.authorHoff, Mari
dc.date.accessioned2017-10-20T07:12:38Z
dc.date.available2017-10-20T07:12:38Z
dc.date.created2017-10-19T13:05:06Z
dc.date.issued2017
dc.identifier.citationJ Rheumatol.. 2017, 44 (8), 1134-1141.nb_NO
dc.identifier.issn1480-3666
dc.identifier.urihttp://hdl.handle.net/11250/2461154
dc.description.abstractObjective. Self-reported diagnoses of inflammatory arthritis are not accurate. The primary study aim was to ascertain self-reported diagnoses of rheumatoid arthritis (RA) and ankylosing spondylitis (AS) in the Norwegian population-based Nord-Trøndelag Health Study (HUNT) using hospital case files. The secondary aim was to provide updated estimates of the prevalence and incidence of RA and AS. Methods. All inhabitants ≥ 20 years old from the county of Nord-Trøndelag were invited. Data from 70,805 unique participants from HUNT2 (1995–1997) and HUNT3 (2006–2008) were included. For participants who self-reported RA or AS, case files from all 3 hospitals in the catchment area were evaluated using standardized diagnostic criteria. Results. Of 2703 self-reported cases of RA, 19.1% were verified in hospital files. Of 1064 self-reported cases of AS, 15.8% were verified. Of 259 cases self-reporting both RA and AS, 8.1% had RA and 5.4% had AS. Overall, a self-report of 1 or both diagnoses could not be verified in 82.1%, including 22.8% with insufficient information or no case file. The prevalence of RA was 768 (95% CI 705–835) per 100,000. The incidence of RA from HUNT2 to HUNT3 was 0.48 (0.41–0.56) per 1000 per year. The prevalence of AS was 264 (228–305) per 100,000. The incidence of AS from HUNT2 to HUNT3 was 0.19 (0.15–0.24) per 1000 per year. Conclusion. Self-reported diagnoses of RA and AS are often false-positive. The prevalence and incidence of RA were comparable to reports from similar populations. The incidence of AS was higher than previously reported in a mixed population from Norway.nb_NO
dc.language.isoengnb_NO
dc.publisherThe Journal of Rheumatologynb_NO
dc.titleSelf-reported diagnosis of rheumatoid arthritis or ankylosing spondylitis has low accuracy: Data from the Nord-Trøndelag Health Studynb_NO
dc.typeJournal articlenb_NO
dc.description.versionacceptedVersionnb_NO
dc.source.pagenumber1134-1141nb_NO
dc.source.volume44nb_NO
dc.source.journalJ Rheumatol.nb_NO
dc.source.issue8nb_NO
dc.identifier.doi10.3899/jrheum.161396
dc.identifier.cristin1505926
dc.description.localcode© 2017. This is a pre-copy-editing, author-produced PDF of an article accepted for publication in The Journal of Rheumatology following peer review. LOCKED until 1.8.2018 due to copyright restrictions. The definitive publisher-authenticated version [Self-reported diagnosis of rheumatoid arthritis or ankylosing spondylitis has low accuracy: Data from the Nord-Trøndelag Health Study] is available online at: http://www.jrheum.org/content/44/8/1134nb_NO
cristin.unitcode194,65,15,0
cristin.unitcode194,65,20,0
cristin.unitnameInstitutt for klinisk og molekylær medisin
cristin.unitnameInstitutt for samfunnsmedisin og sykepleie
cristin.ispublishedtrue
cristin.fulltextpostprint


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