Abstract
Background: Diabetic retinopathy is the leading cause of blindness among adults, but vision loss is preventable through regular screening. Urban areas in Canada have large numbers of unscreened individuals and teleophthalmology programs have been used to improve access and uptake of screening. The purpose of this study was to test different patient engagement approaches to expand teleophthalmology program to team-based primary care clinic in the city of Toronto, Canada.Methods: A teleophthalmology program was set up in a large urban academic team-based primary care practice. Patients over 18 years of age, with type 1 or type 2 diabetes were randomized to one of four engagement strategies: a phone call, a letter, a letter plus phone call, or usual care. Outreach was conducted by administrative staff within the clinic. The primary outcome was booking an appointment for diabetic retinopathy screening through a teleophthalmology program at the time of the call or within one week for the mail intervention. Results: A total of 23 patients in the phone, 28 in the mail, 32 in the mail and phone, and 27 in the control (usual care) were included in the analysis. After the intervention, 88% of patients in the phone intervention, 11% of patients in the mail group, and 100% in the mail and phone group booked an appointment with the teleophthalmology program compared to 0% in the control group. Phoning patients positively predicted patients booking a teleophthalmology appointment (p< .0001), while sending a letter had no effect. Conclusions: Patient engagement to book diabetic retinopathy screening via teleophthalmology in an urban academic team-based primary care practice using telephone calls was much more effective than letters or usual care. Practices that have access to a local DR screening programs and have the required resources to undertake such engagement strategies should consider using them as a means in improving their DR screening rates.
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