LCN2 and type 2 diabetes mellitus: Serum lipocalin-2 was independently associated with subclinical atherosclerosis in type 2 diabetes (OR 2.10, 95% confidence interval (CI) 1.06–4.16, P = 0.033), together with age (P<0.001), BMI (P = 0.001) and FPG (P = 0.016).