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Autoimmune Disease in First-Degree Relatives and Spouses of Individuals With Celiac Disease
Vardctr Varmlands Nysater, Primary Care Res Unit, S-66195 Varmlands Nysater, Varmland County, Sweden.;Univ Oslo, Inst Hlth & Soc, Dept Hlth Management & Hlth Econ, Oslo, Norway..ORCID iD: 0000-0001-9137-2800
Univ Groningen, Univ Med Ctr Groningen, Dept Genet, Groningen, Netherlands..
Mayo Clin, Dept Internal Med, Div Gastroenterol & Hepatol, Rochester, MN USA..
Orebro University Hospital. Karolinska Inst, Dept Med Epidemiol & Biostat, Stockholm, Sweden.; Dept Pediat.
2015 (English)In: Clinical Gastroenterology and Hepatology, ISSN 1542-3565, E-ISSN 1542-7714, Vol. 13, no 7, 1271-1277.e2 p.Article in journal (Refereed) Published
Abstract [en]

BACKGROUND & AIMS: First-degree relatives of individuals with celiac disease are at increased risk for this disorder, but little is known about their risk for other autoimmune diseases. We assessed the risk of nonceliac autoimmune disease in first-degree relatives and spouses of people with celiac disease. METHODS: We identified individuals with celiac disease by searching computerized duodenal and jejunal biopsies, collected from 1969 through 2008, at 28 pathology departments in Sweden. Celiac disease was identified based on biopsy reports of villous atrophy (equal to Marsh grade 3; n = 29,096). Individuals with celiac disease were matched with up to 5 controls (people without celiac disease) for sex, age, county, and calendar year (total, 144,522 controls). Through Swedish health care registries, we identified all first-degree relatives (fathers, mothers, siblings, and offspring) and spouses of individuals with celiac disease (n = 84,648) and controls (n = 430,942). We used Cox regression analysis to calculate hazard ratios (HRs) for nonceliac autoimmune disease (Crohn's disease, type 1 diabetes mellitus, hypothyroidism, hyperthyroidism, psoriasis, rheumatoid arthritis, sarcoidosis, systemic lupus erythematosus, or ulcerative colitis) in these groups. RESULTS: During the follow-up period (median, 10.8 y), 3333 of the first-degree relatives of patients with celiac disease (3.9%) and 12,860 relatives of controls (3.0%) had an autoimmune disease other than celiac disease. First-degree relatives of people with celiac disease were at increased risk of nonceliac autoimmune disease, compared with controls (HR, 1.28; 95% confidence interval, 1.23-1.33), as were spouses (HR, 1.20; 95% confidence interval, 1.06-1.35). Risk estimates for nonceliac autoimmune disease did not differ between first-degree relatives and spouses of individuals with celiac disease (interaction test: P =.11). HRs for nonceliac autoimmune disease were highest in the first 2 years of follow-up evaluation. CONCLUSIONS: First-degree relatives and spouses of individuals with celiac disease are at increased risk of nonceliac autoimmune disease. In addition to genetic factors, environmental factors and ascertainment bias might contribute to the increased risk of autoimmunity in first-degree relatives of individuals with celiac disease.

Place, publisher, year, edition, pages
2015. Vol. 13, no 7, 1271-1277.e2 p.
Keyword [en]
Population Study, Risk Factor, Genetics, Heredity, Celiac, Cohort, Shared Genetics, Autoimmune
National Category
Gastroenterology and Hepatology
Identifiers
URN: urn:nbn:se:oru:diva-56348DOI: 10.1016/j.cgh.2015.01.026ISI: 000360053800126PubMedID: 25645875OAI: oai:DiVA.org:oru-56348DiVA: diva2:1081803
Available from: 2017-03-15 Created: 2017-03-15 Last updated: 2017-03-15Bibliographically approved

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CiteExportLink to record
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