Relationship between red cell distribution width within 24 hours and 30-day prognosis in ICU patients with multidrug-resistant pulmonary infection
Objective To study the role of red blood cell distribution width(RDW)in the prognosis evaluation of multidrug-resistant organism(MDRO)pulmonary infection(PI)in patients in intensive care unit(ICU).Methods Patients with MDRO PI in the ICU of a hospital from January 2021 to December 2022 were selected,they were di-vided into good prognosis group and poor prognosis group based on the prognosis.Basic information and serological indicators between two groups of patients were compared,including RDW(RDW coefficient of variation[RDW-CV],RDW standard deviation[RDW-SD]),D-dimer,procalcitonin(PCT),high-sensitivity troponin(TNTsh),N-terminal pro-B-type natriuretic peptide(NT-proBNP),erythrocyte sedimentation rate(ESR),C-reactive protein(CRP),and interleukin-6(IL-6).Univariate t-test and multiple logistic regression were adopted to analyze the cor-relation factors between serological indicators and the prognosis of MDRO PI patients,receiver operating characte-ristic(ROC)curves were used to evaluate the predictive efficacy of RDW on the prognosis of MDRO PI patients.Results A total of 275 cases of MDRO PI were included in analysis,age range from 22 to 99 years old;181 cases(65.8%)were in good prognosis group,94 cases(34.2%)in poor prognosis group.The levels of PCT,D-dimer,RDW-CV,RDW-SD,TNTsh,and NT-proBNP in the poor prognosis group were all higher than those in the good prognosis group,differences were all statistically significant(all P<0.05).Multivariate logistic regression analysis showed that the increase of RDW-CV(OR-19.011,95%CI[5.247-68.882],P<0.05)and RDW-SD(OR=13.693,95%CI[3.820-49.087],P<0.05)were associated with poor prognosis in patients with MDRO PI.ROC curve results showed that the areas under the curve of RDW-CV and RDW-SD were 0.901 and 0.896,respec-tively,with optimal cutoff values of 14.45%and 49.60%,respectively.Conclusion This study suggests that RDW value is closely related to the disease outcome of MDRO PI patients,and is expected to become one of the prog-nostic evaluation indicators,achieve early intervention and risk assessment.
red blood cell distribution widthmultidrug-resistant organismpulmonary infectionprognosisintensive care unit