The Value of Neutrophil/monocyte Ratio in Early Diagnosis of Children Mycoplasma Pneumoniae Pneumonia

Background: To investigate the value of blood cell analysis in early diagnosis of mycoplasma pneumoniae pneumonia (MP). Methods: : The clinical parameters, including patient characteristics, clinical symptoms, imaging characteristics and laboratory examination data of the patients hospitalized in the Department of Pediatrics, Nanjing Jiangning Hospital from January 2018 to March 2020 due to community-acquired pneumonia were collected for retrospective analysis. The data were analyzed by SPSS 22.0 software for statistical analysis. P <0.05 was considered statistically significant. Results: : The levels of white blood cell count (WBC), absolute neutrophil count (NEU), absolute monocyte count (MON), platelet count (PLT), neutrophil/lymphocyte ratio(NLR), mean platelet volume/platelet count (MPV/PLT) and neutrophil/monocyte ratio (NMR) in children with bacterial pneumonia (BP)were significantly higher than those of children withMP and children withviral pneumonia (VP), the NMR level in children withMP was higher than that of children with VP,the NMR levelsin the three groups of children were significantly different ( P <0.05).Combined with the NMR level, the children’s age andpulmonary consolidation information,the AUC areas of MP, BP and VP had high accuracy fordifferential diagnosis of MP. Conclusion: As a comprehensive indicator of neutrophils and monocytes, NMR may differentiate pneumonia caused by mycoplasma pneumoniae, bacterial and viral infections, which provides new direction for early differential diagnosis of pneumonia.