Cited by 234Diabetes and associated disordersDiabetes Management and ResearchDiabetes, Cardiovascular Risks, and Lipoproteins

The incidence of Type I diabetes has not increased but shifted to a younger age at diagnosis in the 0–34 years group in Sweden 1983 to 1998

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and the Swedish Childhood Diabetes Study Group, Pundziute-Lyckå, A., Dahlquist, G., Nyström, L., Arnqvist, H., Björk, E., Blohmé, G., Bolinder, J. +3 more·2002·Diabetologia

Abstract

Aims/hypothesis To analyse the incidence of Type I (insulin-dependent) diabetes mellitus in the 0-34 years age group in Sweden 1983-1998.Methods Incidence and cumulative incidence per 100 000 and Poisson regression analysis of age-period effects was carried out using 11 751 cases from two nation-wide prospective registers.Results Incidence (95%-CI) was 21.4 (20.8-21.9) in men and 17.1 (16.6-17.5) in women between 0 and 34 years of age. In boys aged 0-14 and girls aged 0-12 years the incidence increased over time, but it tended to decrease at older age groups, especially in men. Average cumulative incidence at 35 years was 748 in men and 598 in women. Cumulative incidence in men was rather stable during four 4-year periods (736, 732, 762, 756), while in women it varied more (592, 542, 617, 631). In males aged 0-34 years, the incidence did not vary between the 4-year periods ( p=0.63), but time changes among the 3-year age groups differed ( p<0.001). In females the incidence between the periods varied ( p<0.001), being lower in 1987-1990 compared to 1983-1986, but time changes in the age groups did not differ ( p=0.08). For both sexes median age at diagnosis was higher in 1983-1986 than in 1995-1998 ( p<0.001) (15.0 and 12.5 years in males; 11.9 and 10.4 in females, respectively).Conclusion/interpretation During a 16-year period the incidence of Type I diabetes did not increase in the 0-34 years age group in Sweden, while median age at diagnosis decreased. A shift to younger age at diagnosis seems to explain the increasing incidence of childhood Type I diabetes.

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  • Many reports indicate an excess of type 1 diabetes cases in male adults after the pubertal years, with a male-to-female ratio of at least 1.5, in populations of European origin.

    “Many reports indicate an excess of T1D cases in male adults after the pubertal years (male-female ratio ≥1.5) in populations of European origin 31–34.”

    From Epidemiology of type 1 diabetes (2010) · cites this paper as [33]

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and the Swedish Childhood Diabetes Study Group, Pundziute-Lyckå, A., Dahlquist, G., Nyström, L., Arnqvist, H., Björk, E., Blohmé, G., Bolinder, J., Eriksson, J., Sundkvist, G., & Östman, J.
Affiliations
  • Umeå University (SE)
  • Linköping University (SE)
  • Uppsala University Hospital (SE)
  • Karolinska Institutet (SE)
  • Skåne University Hospital (SE)
Venue
Diabetologia
Published
2002-05-08
Volume
45
Issue
6
Pages
783-791
ISSN
  • 0012-186X (ISSN-L)
  • 1432-0428
OpenAlex
W1996624137
Cited by
234
References
40
Citations by year
2025: 3 · 2024: 2 · 2023: 4 · 2022: 1 · 2021: 3 · 2020: 4 · 2019: 5 · 2018: 5 · 2017: 7 · 2016: 9 · 2015: 10 · 2014: 13 · 2013: 12 · 2012: 12
FWCI
8.22
Type
journal article
Language
en
Open access
Locations
  • Diabetologia (publishedVersion)
  • PubMed (publishedVersion)
  • Lund University Publications (Lund University) (submittedVersion)
Funders
Medical Research Council
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Diabetes and associated disorders
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Management and Research
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes, Cardiovascular Risks, and Lipoproteins
Keywords
type 1 diabetes, incidence trends, age at diagnosis, pediatric diabetes, sex differences, Sweden, diabetes registry, cumulative incidence
MeSH terms
Adolescent, Adult, Child, Child, Preschool, Diabetes Mellitus, Type 1, Female, Humans, Infant, Male, Regression Analysis, Sex Characteristics, Sweden, Time Factors, Incidence, Poisson Distribution, Age of Onset, Age Distribution

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