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Risk factors for mortality and ischemic heart disease in patients with long-term type 1 diabetes

Jakob Grauslund1, Trine M M Jørgensen, Mads Nybo

  • 1Department of Ophthalmology, Odense University Hospital, Odense, Denmark. jakob.grauslund@ouh.regionsyddanmark.dk

Journal of Diabetes and Its Complications
|July 7, 2009
PubMed

Insights

Glycemic control, lipid levels, and kidney function significantly impact mortality and ischemic heart disease (IHD) risk in long-term type 1 diabetes patients. Tighter regulation improves outcomes, even for those surviving decades with diabetes.

Area of Science:

  • Endocrinology and Metabolism
  • Cardiovascular Disease Research
  • Nephrology

Background:

  • Type 1 diabetes (T1D) management requires long-term monitoring of metabolic and renal health.
  • Understanding the impact of glycemic regulation, dyslipidemia, and renal dysfunction on adverse outcomes is crucial for T1D patients.
  • Previous studies have highlighted risks, but long-term cohort data in T1D populations are essential.

Purpose of the Study:

  • To assess the long-term effects of glycemic control, dyslipidemia, and renal dysfunction on all-cause mortality, cardiovascular mortality, and ischemic heart disease (IHD).
  • To evaluate these risk factors in a population-based cohort of Danish type 1 diabetic patients with over 20 years of diabetes duration.

Main Methods:

  • A cohort of 727 Danish type 1 diabetic patients identified in 1973 was reassessed in 1993-1996.
  • Baseline data on glycemic regulation, lipids, creatinine, and albuminuria were collected from blood and urine samples.
  • Mortality and IHD data were tracked until 2006 using national registries.

Main Results:

  • Glycemic regulation, triglycerides, LDL cholesterol, HDL cholesterol (inversely), total cholesterol, creatinine, and macroalbuminuria were associated with all-cause and cardiovascular mortality.
  • All tested markers, except macroalbuminuria, were linked to an increased risk of IHD.
  • Microalbuminuria at baseline did not show a significant association with any of the studied endpoints.

Conclusions:

  • Glycemic regulation, dyslipidemia, and renal dysfunction are significant predictors of mortality and IHD in long-term type 1 diabetes survivors.
  • These findings emphasize the importance of stringent metabolic and renal management for improved long-term outcomes in T1D.
  • Optimized glycemic control and management of lipid and renal complications are vital for reducing cardiovascular risk in T1D.
Abstract

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