Retracted: Prediction of Proliferative Diabetic Retinopathy to Asymptomatic Obstructive Coronary Artery Disease in Chinese Type 2 Diabetes Individuals: An Exploratory Study

Background: Patients with type 2 diabetes are prone to the asymptomatic obstructive coronary artery disease (AO-CAD). The association of proliferative diabetic retinopathy (PDR) with AO-CAD is unknown. The aim of the study is to explore the specific relationship of PDR with AO-CAD. Methods: We performed coronary angiography and retinal photographs in 1332 participants with unknown CAD status in a retrospective discovery set and 252 patients with...