Diabetologia

, Volume 22, Issue 4, pp 289–291 | Cite as

The incidence of Type 1 (insulin-dependent) diabetes in Toronto

  • R. M. Ehrlich
  • L. J. Walsh
  • J. A. Falk
  • P. J. Middleton
  • N. E. Simpson
Short Communications

Summary

An incidence of 9.0 out of 100,000 children under 19 years of age with Type 1 (insulin-dependent) diabetes was detected in Toronto during a 2 year prospective study. An increased number of cases occurred in the winter months of one of the years but not of the other during the study. The annual incidence was the same in each year. There were slightly more boys than girls but this was not significant. The diabetic children were significantly younger than their non-affected siblings. The incidence of Type 1 diabetes in Toronto is similar to other North American studies.

Key words

Type 1 diabetes incidence seasonal variation 

References

  1. 1.
    LaPorte RE, Fishbein HA, Drash AL, Kuller LH, Schneider BB, Orchard TJ, Wagener DK (1981) The Pittsburgh insulin-dependent diabetes mellitus (IDDM) registry: the incidence of insulin dependent diabetes mellitus in Allegheny County, Pennsylvania (1965–1976). Diabetes 30:279–284Google Scholar
  2. 2.
    West R, Belmonte MM, Colle E, Crepeau MP, Wilkins J, Poirier R (1979) Epidemiologic survey of juvenile-onset diabetes in Montreal. Diabetes 28:690–693Google Scholar
  3. 3.
    Bloom A, Hayes TM, Gamble DR (1975) Register of newly diagnosed diabetic children. Brit Med J 3:580–583Google Scholar
  4. 4.
    Christau B, Kromann H, Andersen OO, Christy M, Buschard K, Arming K, Kristensen IH, Peitersen B, Steinrud J, Nerup J (1977) Incidence and seasonal geographic patterns of juvenile onset insulin-dependent diabetes mellitus in Denmark. Diabetologia 13: 281–284Google Scholar
  5. 5.
    Akerblom H, Kaar M-L, Reunanen A (1981) The epidemiology of insulin dependent diabetes mellitus in 0–14 year old children in Finland with particular reference to Northern Finland. In: Martin J, Ehrlich R, Holland J (eds) Etiology and pathogenesis of insulin dependent diabetes mellitus. Raven PressGoogle Scholar

Copyright information

© Springer-Verlag 1982

Authors and Affiliations

  • R. M. Ehrlich
    • 1
  • L. J. Walsh
    • 1
  • J. A. Falk
    • 2
  • P. J. Middleton
    • 1
  • N. E. Simpson
    • 3
  1. 1.Departments of Pediatrics, Genetics and VirologyThe Hospital for Sick Children, University of TorontoCanada
  2. 2.Tissue Typing LaboratoryToronto Western HospitalToronto
  3. 3.Departments of Pediatrics and BiologyQueen's UniversityKingstonCanada

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