CST3 and type 2 diabetes mellitus: The application of the nomogram model is demonstrated by the following example: assuming a sepsis patient with T2DM with a MAP of 70 mmHg, a Cystatin C of 3 mg/L, an HDL of 1 mmol/L, a PLT of 200 x 109/L, and an apoE of 40 mg/L.