Original ArticleSix-year prevalence and incidence of diabetic retinopathy and cost-effectiveness of tele-ophthalmology in Manitoba☆
Section snippets
Methods
A retrospective chart analysis was performed on the MRSVP database using records from May 2007 to July 2013. Research ethics approval was obtained from the University of Manitoba and the Misericordia Hospital Research Ethics Boards. Patients were included if they were 18 years of age or older and had a diagnosis of type 2 diabetes mellitus. Charts were excluded if the acquired images were ungradable.
Community-based, mydriatic 7 standard field stereoscopic fundus photography was performed in
Results
From May 2007 to July 2013, a total of 4676 patients (54.9% female) from 49 communities were examined for a total of 9672 times. Of them, 338 cases (3.5%) were excluded from the study because of ungradable images (leaving a total of 9334 examinations for analysis). The mean age (± SD) for male patients was 53.7 (± 13.4) years, and for female patients it was 52.0 (± 14.1) years.
Of the patients, 2096 (44.8%) were examined only once over the 6 years of data. The percentage of patients examined 2,
Discussion
Diabetes is a significant public health issue in Canada and is associated with a variety of systemic complications, including DR. Canada lacks major epidemiological studies of vision loss, which may limit efforts in planning public policy.13 The present retrospective study is the largest of its kind in Canada and provides information on both rates of DR and the utility of tele-ophthalmology.
Previous epidemiological studies incorporating varying forms of tele-ophthalmology have been performed in
Disclosure
The authors have no proprietary or commercial interest in any materials discussed in this article.
Acknowledgements
The authors wish to acknowledge the assistance of the following individuals: Abshir Moalin (Secure Diagnostics Imaging) and Brenda Weiss (Misericordia Health Centre).
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Recipient of the 2015 Canadian Ophthalmological Society Award for Excellence in Ophthalmic Research (Poster).