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Diabetic Retinopathy on the Decline Among Native Americans

Article

Findings reported in JAMA Opthalmology show substantial decrease from 30 years ago.

Better access to eye care may be making a dent in the rates of diabetic retinopathy among Native Americans.

About 14.5% of American Indians and Native Americans (AI/NA) have diabetes, which is double the proportoin of White Americans with the diease. According to findings from the SEARCH for Diabetes in Youth Study (SEARCH), between 2002 and 2015, the rate of diabetes diagnoses rose steadily in the 10 – 18 year olds in the US: 4.8% overall, 3.7% among AI/NA.

However, a recent report in JAMA Opthalomology suggests that diabetic retinopathy incidence and progression in that population are “substantially lower than they were 30 or more years ago and are now comparable with estimates from non-American Indian and Alaska Native populations examined in the last 20 years.”

Stephanie Fonda, Ph.D.

Stephanie Fonda, Ph.D.

Using datafrom the IHS teleophthalmology program, Stephanie Fonda, Ph.D., of Estanda Solutions Inc., of Wayne, Pennsylvania, and others examined the incidence of diabetic retinopathy among AI/NA adults. Their retrospective cohort study, conducted between 2015 and 2019, included adults with diabetes and no evidence of diabetic retinopathy (DR) or mild nonproliferative DR (NPDR) in 2015 who were reexamined at least once during 2016-2019.

Of 7,097 patients who had no DR in 2015, 18% had mild NPDR or worse in 2016-2019. The incidence rate from no DR to any DR was 69.6 cases per 1,000 person years at risk. Roughly 6% of participants had a 2+ step increase from no DR to moderate NPDR or worse; 27% of those with mild NPDR progressed to moderate or worse; 2.3% progressed to severe NPDR or worse.

Noting that the estimates of DR incidence and progression were lower than those previously reported for AI/AN, these researchers suggest extending the time between DR re-evaluations for certain patients in this population, “if follow-up compliance and visual acuity outcomes are not jeopardized.”

The researchers give credit to IHS programs, such as the Special Diabetes Program for Indians and the American Telemedicine Association Category 3 teleophthalmology program. Both have increased access to diabetes treatment services; the teleophthalmology program alone conducted 264,437 examinations of 120,075 patients between 2000 and 2021.

“Coinciding with this expansion of diabetes programs and medications,” the researchers say, “the prevalence of diabetic eye disease in American Indian and Alaska Native individuals served by the IHS teleophthalmology program appears to have declined.”

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