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Ethnic differences in diabetic retinopathy.

D Simmons1, G Clover, C Hope

  • 1Waikato Clinical School, University of Auckland, Hamilton, New Zealand. dsworkster@gmail.com

Diabetic Medicine : a Journal of the British Diabetic Association
|August 30, 2007
PubMed
Summary
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Diabetic retinopathy is more prevalent in Maori and Pacific peoples compared to Europeans with Type 2 diabetes. Factors like diabetes duration and ethnicity influence retinopathy risk more than blood sugar levels.

Area of Science:

  • Ophthalmology
  • Diabetology
  • Public Health

Background:

  • Diabetic retinopathy (DR) is a leading cause of vision loss.
  • Ethnic disparities in diabetes complications are increasingly recognized.

Purpose of the Study:

  • To compare the prevalence of diabetic retinopathy among European, Maori, and Pacific peoples with diabetes.
  • To identify risk factors associated with diabetic retinopathy in diverse ethnic groups.

Main Methods:

  • A cross-sectional study involving 458 participants with diabetes (Europeans, Maori, Pacific peoples).
  • Biomedical assessment, retinal photography, and measurement of glycemia (HbA1c, fructosamine, random glucose).

Main Results:

  • Moderate to severe diabetic retinopathy was significantly more common in Maori (12.9%) and Pacific peoples (15.8%) than Europeans (4.0%) with Type 2 diabetes (P=0.003).

Related Experiment Videos

  • Retinopathy risk was associated with diabetes duration, insulin therapy, ethnicity, and renal disease, but not glycaemia levels.
  • Pacific people had a higher prevalence of cataracts.

    • Conclusions:

    • Moderate to severe diabetic retinopathy is more prevalent in Polynesian populations (Maori and Pacific peoples) compared to Europeans.
    • While higher hyperglycemia was observed in Polynesians, the increased retinopathy risk appears linked to other factors such as longer diabetes duration and ethnicity.