LCN2 and type 2 diabetes mellitus: When both NGAL and sdLDL-C were included in the multiple regression model, NGAL (HR = 1.008, 95% CI: 1.006–1.009, P < 0.001) and sdLDL-C (HR = 1.059, 95% CI: 1.046–1.072, P < 0.001) were independently associated with the risk of MACCE in T2DM patients, which was largely consistent with the above results.