{Reference Type}: Journal Article
{Title}: Prevalence and incidence of diabetic retinopathy (DR) in the UK population of Gloucestershire.
{Author}: Scanlon PH;Nevill CR;Stratton IM;Maruti SS;Massó-González EL;Sivaprasad S;Bailey C;Ehrlich M;Chong V;
{Journal}: Acta Ophthalmol
{Volume}: 0
{Issue}: 0
{Year}: Jun 2021 28
{Factor}: 3.988
{DOI}: 10.1111/aos.14927
{Abstract}: <B>OBJECTIVE: </B>To estimate prevalence and incidence of diabetic retinopathy (DR) in a UK region by severity between 2012 and 2016 and risk factors for progression to proliferative DR (PDR).<BR><B>METHODS: </B>Electronic medical records from people with diabetes (PWD) ≥18 years seen at the Gloucestershire Diabetic Eye Screening Programme (GDESP) and the hospital eye clinic were analysed (HEC). Prevalence and incidence of DR per 100 PWD (%) by calendar year, grade and diabetes type were estimated using log-linear regression. Progression to PDR and associated risk factors were estimated using parametric survival analyses.<BR><B>RESULTS: </B>Across the study period, 35 873 PWD had at least one DR assessment. They were aged 66 (56-75) years (median (interquartile range)), 57% male, 5 (1-10) years since diabetes diagnosis, 93% Type 2 diabetes. Prevalence of DR decreased from 38.9% (95% CI: 38.1%, 39.8%) in 2012 to 36.6% (95% CI: 35.9%, 37.3%) in 2016 (p < 0.001). Incidence of any DR decreased from 10.9% (95% CI: 10.4%, 11.5%) in 2013 to 8.5% (95% CI: 8.1%, 9.0%) in 2016 (p < 0.001). Prevalence of PDR decreased from 3.5% (95% CI: 3.3%, 3.8%) in 2012 to 3.1% (95% CI 2.9%, 3.3%) in 2016 (p = 0.008). Incidence of PDR did not change over time. HbA1c and bilateral moderate-severe NPDR were statistically significant risk factors associated with progression to PDR.<BR><B>CONCLUSIONS: </B>Incidence and prevalence of DR decreased between 2012 and 2016 in this well-characterized population of the UK.