Importance: Total serum and high-density lipoprotein cholesterol have been considered risk factors for severe vascular outcomes in persons with type 1 diabetes mellitus.
Objective: To examine the long-term relationships between these 2 serum lipids and the incidence and prevalence of proliferative diabetic retinopathy and macular edema.
Design, Setting, And Participants: Nine-hundred three persons with younger-onset type 1 diabetes mellitus who participated in the Wisconsin Epidemiologic Study of Diabetic Retinopathy.
Exposures: Serum total and high-density cholesterol and history of statin use during the course of 5 visits spanning approximately 30 years (April 10, 1984, to February 13, 2014).
Main Outcomes And Measures: Prevalence and incidence of proliferative diabetic retinopathy and macular edema.
Results: A modest association was found for higher levels of high-density lipoprotein cholesterol and decreased prevalence of proliferative diabetic retinopathy (odds ratio per 10 mg/dL, 0.87; 95% CI, 0.82-0.93), adjusting for duration of diabetes mellitus, glycosylated hemoglobin A1c, statin use, and end-stage renal disease. While adjusting for covariates, no associations of serum total or high-density lipoprotein cholesterol and incident proliferative diabetic retinopathy or macular edema, nor of statin use with decreased incidence of proliferative diabetic retinopathy or macular edema, were identified.
Conclusions And Relevance: In the course of long-duration diabetes mellitus during a time of changing medical care, there appeared to be little effect of serum lipids or statins on the incidence of proliferative diabetic retinopathy and macular edema.
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| http://dx.doi.org/10.1001/jamaophthalmol.2014.5108 | DOI Listing |
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