Factors Affecting the Awareness of Diabetic Retinopathy: An Observational Cross-Sectional Study

Background: Diabetes mellitus (DM) is a chronic metabolic disease characterized by elevated blood glucose levels. Over time, it can lead to serious complications in the eyes, heart, blood vessels, kidneys, and nerves, being the leading cause of blindness among working-age patients.

Aim and methods: This descriptive observational cross-sectional study aims to evaluate the factors affecting the awareness of the general adult diabetic population about their chronic disease and its complications. A survey was distributed anonymously among diabetic patients in different parts of Jordan over four months (January 2023-April 2023), targeting diabetic patients (DMT2 or adults DMT1). The link was sent via WhatsApp to willing candidates. Data collected included age, sex, region, education, home blood sugar (BS) testing, knowledge about cumulative blood sugar test (HbA1c), eye affection by DM, optician role, and doctor and nutritionist follow-up visits. A chi-squared test or Fisher's exact test explored the association between categorical data; a z-test was applied for column proportion differences. An alpha level of 0.05 was deemed statistically significant. IBM SPSS Statistics for Windows, Version 28 (Released 2021; IBM Corp., Armonk, New York) was used for data analysis.

Results: The sample comprised 447 diabetic adults aged 18-80 years. The majority were school-educated or school leavers (278; 62.2%); 20 (4.5%) held a master's or PhD degree. The largest group had DM for one to five years. Insulin was the sole treatment for 188 patients (42.1%), while oral hypoglycemic agents (OHA) were used by 170 patients (38%) as the only anti-DM medication. A total of 174 patients (38.9%) had never been seen by an ophthalmologist, and 153 (34.2%) believed an optometrist checkup suffices. Although 381 (85.2%) reported knowing DM affects the eyes, 272 (60.9%) believed they needed to see an ophthalmologist only when experiencing eye symptoms. Less than half (186; 41.6%) had an HbA1c reading of 7% or less. There was a significant correlation between education level and awareness of DM and diabetic retinopathy (DR): HbA1c, regular home BS checkups, early DR symptoms, and optometrist visits. Significant variations in awareness were noted across Jordan's major areas. Diabetics with abnormal HbA1c who visited a nutritionist were almost triple those who did not. The main information source about DM and DR was the treating physician for 298 (66.7%) respondents.

Conclusion: Awareness of DM and DR in Jordan is not satisfactory for assisting patients in their long journey with minimal complications. A national awareness campaign utilizing social media and a sustainable screening program prioritizing the north, south, and middle regions of Jordan are needed.