Li et al reported a model for predicting sepsis mortality for a patient in China. The authors are from Shanghai Jiaotong University and Nantong University in China.
Patient selection: Chinese patient with sepsis
Parameters:
(1) age in years, from 10 to 90
(2) serum albumin in g/L, from 10 to 45
(3) D-dimer in mg/L, from 0 to 120
(4) serum creatinine in µmol/L, from 0 to 650
(5) prothrombin time in seconds, from 0 to 50
points for age =
= 46.462 - (0.516 * (age))
points for albumin =
= (0.383 * (albumin)) - 3.829
points for D-dimer =
= 15 - (0.125 * (Ddimer))
points for serum creatinine =
= 36.6 - (0.056 * (creatinine))
points for prothrombin time =
= 100 - (2 * (PT))
total score =
= SUM(points for all of the parameters)
Interpretation:
• minimum score: 0
• maximum score: 206.3
value of X =
= (0.03747 * (score)) - 4.87
60-day survival probability =
= 1 / ( 1 + EXP((-1) * X))
Performance:
• The area under the ROC curve is 0.72.
