Type 1 diabetes

Risk of new‐onset type 1 diabetes in individuals with celiac disease and thyroid disease—An observational study

Diabetes Obes MetabPublished Retrospective cohort study

Authors' conclusion

The risk of developing type 1 diabetes was significantly higher for individuals with celiac disease or thyroid disease compared to those without any of these conditions. These findings support the screening of individuals with these conditions for stage 2 type 1 diabetes.

Study context

Population
Individuals with celiac disease, hyperthyroidism or hypothyroidism and matched controls without these conditions, real-world claims datamatched cohort
Participants
47,099 / 47,099 / 164,830 / 164,830 / 980,477 / 980,477
Exposure
Celiac disease, hyperthyroidism or hypothyroidism vs matched controls without these conditions
  • Celiac diseasen = 47,099
  • Celiac controlsn = 47,099reference
  • Hyperthyroidismn = 164,830
  • Hyperthyroidism controlsn = 164,830reference
  • Hypothyroidismn = 980,477
  • Hypothyroidism controlsn = 980,477reference
Outcome
New-onset T1D
Methodological detailsobservational, matched-cohort, propensity score matched 1:1, real-world claims data
  • Observational
  • Matched-cohort
  • Propensity score matched 1:1
  • Real-world claims data

Main finding

As reported in the abstract

Developed T1D

Celiac disease vs Celiac controls

Hazard ratio
HR 2.54; P < 0.0001

Hyperthyroidism vs Hyperthyroidism controls

Adjusted hazard ratio
adjusted HR 2.98; P < 0.0001

Hypothyroidism vs Hypothyroidism controls

Hazard ratio
HR 2.41; P < 0.0001

Observational data: associations, not effects.

Further findings

T1D risk by age

Risk was highest among individuals aged <18 years

Original publication

Risk of new‐onset type 1 diabetes in individuals with celiac disease and thyroid disease—An observational study. Diabetes Obes Metab. Published 28 May 2025. doi:10.1111/dom.16454

Composed by AI from the published abstract and checked against it. How Briefs are made →

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