LCT and Sepsis: According to the regression equation P1 = 1/(1 + e(x)), the clinical prediction model equation of sepsis is as follows: P1 = 1/(1 + e(−2.333 + 0.147X1 + 0.012X2 + 1.068X3)), in which X1, X2, and X3 correspond to Lac, TBA, septic shock.