Evidence map›Paper›PMID 32139386›Full record

ArticleDiabetes care2020

Every Fifth Individual With Type 1 Diabetes Suffers From an Additional Autoimmune Disease: A Finnish Nationwide Study.

Sari Mäkimattila, Valma Harjutsalo, Carol Forsblom, Per-Henrik Groop, FinnDiane Study Group

Registry-linked trialAbstract readHistorical Article
PubMed Publisher
In one paragraph

Article in Diabetes care, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07492550 (T1D WATCH Study, a Comprehensive Screening for Type 1 Diabetes Autoantibodies in Children), which is not on this map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
5.4field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT07492550 not yet recruitingnot on this mapstarted 2026, after this paper: background citation

T1D WATCH Study, a Comprehensive Screening for Type 1 Diabetes Autoantibodies in Children: A Proactive Approach to Early Detection and Intervention

Typeobservational_patient_registrySponsorFabiana Sherine Ganem dos SantosRan2026 to 2027Enrolled2,200ConditionsDiabete Type 1
3 · Its place in the literature

Who cites it

26 citing papers in PubMed, 64 citations in OpenAlex.

  1. Article
  2. Observational
  3. Article
  4. Interaction BetweenNutrients · 2025
    Observational
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Sex-specific cytokine, chemokine, and growth factor signatures in T1D patients and progressors.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2024
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 1 institution in 2 countries.

Sari MäkimattilaEndocrinology and Diabetes, Abdominal Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.
Valma HarjutsaloFolkhälsan Institute of Genetics, Folkhälsan Research Center, Biomedicum Helsinki, Helsinki, Finland.ORCID 0000-0003-3568-9779
Carol ForsblomFolkhälsan Institute of Genetics, Folkhälsan Research Center, Biomedicum Helsinki, Helsinki, Finland.
FinnDiane Study Group
University of Helsinki · FI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThe aim of this study was to quantify the excess risk of autoimmune hypothyroidism and hyperthyroidism, Addison disease, celiac disease, and atrophic gastritis in adults with type 1 diabetes (T1D) compared with nondiabetic individuals in Finland. RESEARCH DESIGN AND

methodsThe study included 4,758 individuals with T1D from the Finnish Diabetic Nephropathy (FinnDiane) Study and 12,710 nondiabetic control individuals. The autoimmune diseases (ADs) were identified by linking the data with the Finnish nationwide health registries from 1970 to 2015.

resultsThe median age of the FinnDiane individuals at the end of follow-up in 2015 was 51.4 (interquartile range 42.6-60.1) years, and the median duration of diabetes was 35.5 (26.5-44.0) years. Of individuals with T1D, 22.8% had at least one additional AD, which included 31.6% of women and 14.9% of men. The odds ratios for hypothyroidism, hyperthyroidism, celiac disease, Addison disease, and atrophic gastritis were 3.43 (95% CI 3.09-3.81), 2.98 (2.27-3.90), 4.64 (3.71-5.81), 24.13 (5.60-104.03), and 5.08 (3.15-8.18), respectively, in the individuals with T1D compared with the control individuals. The corresponding ORs for women compared with men were 2.96 (2.53-3.47), 2.83 (1.87-4.28), 1.52 (1.15-2.02), 2.22 (0.83-5.91), and 1.36 (0.77-2.39), respectively, in individuals with T1D. Late onset of T1D and aging increased the risk of hypothyroidism, whereas young age at onset of T1D increased the risk of celiac disease.

conclusionsThis is one of the largest studies quantifying the risk of coexisting AD in adult individuals with T1D in the country with the highest incidence of T1D in the world. The results highlight the importance of continuous screening for other ADs in individuals with T1D.

Indexed as

AdultAge of OnsetAutoimmune DiseasesCeliac DiseaseDiabetes Mellitus, Type 1Diabetic NephropathiesFemaleFinlandFollow-Up StudiesHashimoto DiseaseHistory, 20th CenturyHistory, 21st CenturyHumansHyperthyroidismHypothyroidismIncidence

Identifiers

PMID32139386
OpenAlexW3009062679

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.