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Åke Lernmark

Principal investigator

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Are Perinatal Events Risk Factors for Childhood Thyroid Autoimmunity?

Author

  • Berglind Jonsdottir
  • Markus Lundgren
  • Sara Wallengren
  • Åke Lernmark
  • Ida Jönsson
  • Helena Elding Larsson

Summary, in English

Background: Environmental and genetic factors possibly trigger thyroid autoimmunity. Studies on perinatal risk factors for childhood thyroid autoimmunity are sparse.

Objectives: The aim was to investigate if perinatal factors, family history of autoimmune diseases, and HLA-DQ genotypes contribute to thyroid autoimmunity in the Diabetes Prediction in Skåne (DiPiS) study.

Methods: Samples from 1,874 ten-year-old children were analyzed for autoantibodies to thyroid peroxidase (TPOAb), thyroglobulin (TGAb), and HLA-DQ genotypes. Information on perinatal events and family history of autoimmunity was gathered prospectively in questionnaires.

Results: Thyroid autoimmunity was found in 6.9% of the children (TPOAb 4.4%, TGAb 5.8%, both autoantibodies 3.3%) and was overrepresented in girls. Prematurity was positively related to TGAb (OR: 2.4, p = 0.003, p
c
= 0.021). Autoimmune diseases in the family increased the risk of thyroid autoimmunity: TPOAb (OR: 2.2, p = 0.012), any autoantibody (OR: 1.7, p = 0.04), and both autoantibodies (OR: 2.2, p = 0.024). A first-degree relative (FDR) with thyroid disease increased the risk for TPOAb (OR: 2.4, p = 0.03) and both autoantibodies (OR: 2.6, p = 0.03), a FDR or sibling with celiac disease increased the risk for both autoantibodies (OR: 3.7, p = 0.03, and OR: 4.8, p = 0.003), a FDR or sibling with diabetes increased the risk for thyroid autoantibody (OR: 3.0, p = 0.01, and OR: 5.4, p = 0.032), and a father with rheumatic disease increased the risk for TPOAb (OR: 15.2, p = 0.017), TGAb (OR: 11.3, p = 0.029), any autoantibody (OR: 9.6, p = 0.038), and both autoantibodies (OR: 20, p = 0.01).

Conclusions: Thyroid autoimmunity was found in 6.9% of the 10-year-old children who were being followed for their risk of type 1 diabetes. No relation to perinatal factors was found, with the exception of a possible association between prematurity and TGAb. Family history of autoimmune diseases increased the risk of thyroid autoimmunity.

Department/s

  • Paediatric Endocrinology
  • EXODIAB: Excellence in Diabetes Research in Sweden
  • Geriatrics
  • Diabetes and Celiac Unit

Publishing year

2017-11

Language

English

Pages

298-306

Publication/Series

European Thyroid Journal

Volume

6

Issue

6

Document type

Journal article

Publisher

Karger

Topic

  • Endocrinology and Diabetes
  • Pediatrics

Status

Published

Research group

  • Paediatric Endocrinology
  • Geriatrics
  • Diabetes and Celiac Unit

ISBN/ISSN/Other

  • ISSN: 2235-0640