Prevalence of Diabetes and Diabetic Retinopathy in Far-western Province of Nepal.

BACKGROUND

Although diabetes is emerging as growing public health problem, there is limited population based data about the prevalence of the disease in Nepal.

METHODS

This cross-sectional population-based survey, conducted in the Far-western province of Nepal from April 2020 to April 2021, used standardized RAAB + DR methodology. Diabetes was diagnosed on the basis of treatment history and random blood sugar test results of greater than 200 mg/dl. Diabetic retinopathy screening was done by ophthalmologists. All relevant data were imported into the RAAB software package (RAAB V.6) for analysis.

RESULTS

Among 4615 study population, 2.8 % (n=129) had diabetes, and 35.7% (n=46) of the diabetics were newly identified cases. Of the known diabetics, 61.4% (n=51) never had an eye examination, and only 27.7% (n=23) of cases had their eye checked for DR in the last year. Fundus examination showed 13.2 % (n=17) of the diabetic patients to have some form of diabetic retinopathy and 6.2% (n=8) had diabetic maculopathy. Only 0.8% (n=1) of the cases were categorized as sight-threatening DR but a greater number of diabetes patients had severe visual impairment or blindness (3.9%) as compared to non-diabetic patients (1.8%).

CONCLUSIONS

Prevalence of diabetes and DR were relatively lower in Far-western Nepal. However poor coverage of screening examinations have left many of these cases undetected in the communities. Effective community-based diabetes and DR screening and referral programs can help to detect and treat diabetes and DR early on to prevent vision loss and other diabetic complications.