Aims: Obesity has been proposed to promote the progression of diabetic retinopathy (DR), but previous studies have not shown consistent results. We aimed to explore the association between generalized and abdominal obesity and DR risk, and to assess the joint effect of these two different types of obesity on DR development.
Methods: A nested case-control study within a large prospective study on type 2 diabetes was conducted in communities in Huai'an City, Jiangsu Province, China.