Other studies suggest that education plays a stronger role in type 2 diabetes, while another study suggested that the gross effect of education disappeared after adjustment for socio-demographic factors and income in the analytical model. Further studies are needed to understand the structural link between income/ education and type 2 diabetes in order to provide more evidence on the effective management of type 2 diabetes among the Korean population. The higher prevalence of type 2 diabetes among lower income and education groups is a particular problem because it can aggravate the cycle of inequality.