Abstract
Diabetic retinopathy (DR) is a major cause of blindness in the United States. Prevention relies on periodic DR screening, yet overall national screening rates are not optimal, especially in low-income, minority patients. We prospectively evaluated show rates for prescheduled teleretinal DR screening appointments in diabetic patients (n = 301) in a large safety-net clinic in South Central Los Angeles. Patients were predominately African American (n = 88) and Latino (n = 200). Patients received either usual care telephone reminders or automated reminder calls in addition to usual care. The overall mean (SEM) show rate for DR screening, irrespective of reminder method, was low: 54+1.03%. Show rates with usual care alone were 46.3+2.6%, and with automated reminders added, 59.9+1.47% (p = 0.036). Show rate with usual care amongst African Americans was 23.6+6.46% compared with 53.2+3.41% for Latinos (p = 0.025). When automated calling was added, the show rate doubled amongst African Americans, to 51.6+3.96% (p = 0.002) with a slightly higher, non-significant show rate in Latinos. In summary, show rates for pre-scheduled teleretinal DR screening appointments were low with usual care alone in a safety-net clinic, with evidence for a racial disparity amongst low-income, minority patients with diabetes. Addition of a pre-recorded automated reminder call improved show rates, and corrected much of the racial disparity observed. Greater focus on failed appointments as an explanation for low DR screening rates and racial disparities, and as a potentially remediable target with automated reminders, may improve DR screening rates and reduce blindness in low-income minority patients with diabetes.
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