Tumor patient gram-negative bacillus blood flow infection prognosis model and construction method

The invention discloses a prognosis model for gram-negative bacillus blood flow infection of a tumor patient. The prognosis model comprises a plurality of optimal prognosis factors, evaluation scores corresponding to the optimal prognosis factors in different states and a survival probability corresponding to a total score obtained by adding the evaluation scores, wherein the prognosis factors mainly comprise platelet counting, lymphocyte counting, ICU (Intensive Care Unit), pulmonary infection and shock; wherein the optimal prognosis factors in different states include different counts of platelets before death of a gram-negative bacillus blood flow infected tumor patient, different counts of lymphocytes before death of the gram-negative bacillus blood flow infected tumor patient, different counts of the platelets before death of the gram-negative bacillus blood flow infected tumor patient, whether a gram-negative bacillus bloodstream infected tumor patient enters the ICU prior to death, whether a gram-negat