Value of NLR,PLR and MLR in auxiliary diagnosis of pulmonary infections in the elderly patients
Objective:To assess the value of neutrophil-to-lymphocyte ratio(NLR),platelet-to-lymphocyte ratio(PLR)and monocyte-to-lymphocyte ratio(MLR)in auxiliary diagnosis of pulmonary infections in elderly patients.Methods:The routine blood test results were retrospectively analyzed in 54 elderly patients with pulmonary infections and 54 healthy controls,and NLR,PLR and MLR were calculated,respectively.Multivariate logistic regression model was used to analyze the risk factors for pulmonary infection in the elderly patients,and ROC curve was used to estimate the diagnostic value of the three indicators.Results:The levels of NLR,PLR and MLR in elderly patients with pulmonary infection were higher than those in control group(P<0.05).Multivariate logistic regression analysis showed that elevated NLR was an independent risk factor for the infections.The areas under ROC curve was 0.840 for NLR.Conclusion:NLR is of higher clinical implications,because it is a good auxiliary diagnostic indicator for estimating pulmonary infection in elderly patients.
pulmonary infection,elderly patientsneutrophil/lymphocyte ratioplatelet/lymphocyte ratiomonocyte/lymphocyte ratiodiagnostic value