Type 1 (insulin-dependent) diabetes in Tasmania: prevalence and apparent regional differences

H. King, J. Dixon, G. Senator, M. Schooneveldt, P. Zimmet

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Abstract

The results of a cross-sectional study of Type 1 (insulin-dependent) diabetes in the total population of Tasmania are described. Tasmanians, predominantly of British origin, live in a temperate island situated to the south-east of mainland Australia. For males and females respectively, prevalence in 1984 was 1.1±0.1 and 0.9±0.1 per 1,000 at all ages, 0.6±0.2 and 0.5±0.2 per 1,000 in subjects aged 0-14 years, rising to 1.2±0.2 and 1.1±0.2 per 1,000 in those aged 0-29 years. Prevalence in the 0-19 year age range was 0.8±0.2 per 1,000 in both sexes. Prevalence fell in both sexes from the third decade of life. A statistically significant excess in prevalence was found in the urban, as compared with the rural, sector of the community. The urban relative risk was greatest in subjects aged 10-19 years. According to reported month of onset (commencement of insulin treatment) there was a suggestion of seasonal trend in the rural, but not in the urban subjects. Longitudinal studies of Type 1 diabetes in Tasmania are now required if these findings are to be confirmed, and their possible aetiological implications explored.

Original languageEnglish
Pages (from-to)93-97
Number of pages5
JournalDiabetologia
Volume31
Issue number2
DOIs
Publication statusPublished - Feb 1988
Externally publishedYes

Keywords

  • Diabetes mellitus
  • epidemiology
  • insulin-dependent
  • rural population
  • seasons
  • urban population

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