Prevalence of diabetic nephropathy among Chinese patients with type 2 diabetes mellitus and different categories of their estimated glomerular filtration rate based on the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equation in primary care in Hong Kong: a cross-sectional study.

Purpose: To evaluate the prevalence of diabetic nephropathy and different categories of estimated glomerular filtration rate (eGFR) as calculated by the CKD-EPI equation among Chinese patients with type 2 diabetes in primary care in Hong Kong. The associated factors of diabetic nephropathy were also analyzed.

Methods: A cross-sectional study was conducted in 35,109 Chinese patients with type 2 diabetes followed up in all General Outpatient Clinics in a Hospital Authority cluster and had undergone comprehensive diabetic complication assessment from April 2013 to March 2016.