Adjah ESO, et al. - In this primary care based retrospective longitudinal case–control study, the researchers assessed the risk of developing long-term major cardiovascular and renal complications in relation to levels of body mass index (BMI) in a population of White European (WE), African-Caribbean (AC), and South Asian (SA) patients with type 2 diabetes mellitus (T2DM). From UK primary care database, patients with new diagnosis of T2DM, aged ≥ 18 years from January 2000 and their age-sex-ethnicity matched non-diabetic controls were identified. Results of this study suggested that risk of major cardiovascular events (MACE)/chronic kidney disease (CKD) varies over levels of BMI within each ethnic group, with overweight South Asians (SAs) having a disproportionate risk of CKD.