Retinopathy predicts coronary heart disease mortality

Area of Science:

• Ophthalmology
• Cardiology
• Public Health

Background:

• Retinopathy lesions are common clinical findings.
• These lesions may indicate an increased risk of coronary heart disease (CHD).

Purpose of the Study:

• To determine if retinopathy independently predicts CHD mortality.
• The study examined this risk in both diabetic and non-diabetic populations.

Main Methods:

• The Blue Mountains Eye Study cohort included 2967 participants (199 with diabetes, 2768 without).
• Retinopathy presence and severity were assessed from retinal photographs.
• Coronary heart disease deaths over 12 years were tracked using the Australian National Death Index.

Main Results:

• Over 12 years, 353 participants (11.9%) died from CHD.
• Retinopathy increased CHD mortality risk similarly to diabetes.
• After adjusting for risk factors, retinopathy independently predicted CHD death in both diabetic (HR=2.21) and non-diabetic (HR=1.33) individuals.
• Moderate retinopathy showed significantly higher adjusted hazard ratios for CHD death in both groups.

Conclusions:

• Retinopathy detection in individuals with or without diabetes signals elevated CHD risk.
• The CHD mortality risk associated with retinopathy in non-diabetics is comparable to having diabetes itself.