Objective To investigate the influencing factors of airway mucosal erosion occurrence in child Mycoplasma pneumoniae pneumonia.Methods The medical record data of 162 children patients with Mycoplasma pneumoniae pneumonia hospitalized in the pediatric department of this hospital from February 2023 to February 2024 were analyzed retrospectively.The patients were divided into the mucosal erosion group(n=43)and non-mucosal erosion group(n=119)according to whether or not the mucosal erosion was ob-served by the bronchoscope.The general data,laboratory examination and lung ultrasound images data in the two groups were collected.The pulmonary ultrasound(LUS)was scored.The clinical characteristics,experi-mental indexes and LUS score were compared between the two groups.The stepwise logistic regression was used to analyze the influencing factors of airway mucosal erosion occurrence in Mycoplasma pneumoniae pneu-monia.The receiver operating characteristic(ROC)curve was drawn to analyze the diagnostic efficiency.Results There were statistically significant differences in the fever duration,fever peak,pleural effusion,hos-pitalization duration,neutrophil ratio,levels of C-reactive protein(CRP),lactate dehydrogenase(LDH)and D-dimer,and LUS score had statistical differences between the two groups(P<0.05).The multivariate logistic regression analysis results showed that the fever duration,neutrophil ratio,LDH,D-dimer and LUS score were the influencing factors for airway mucosal erosion occurrence in Mycoplasma pneumoniae pneumonia.The fe-ver duration,neutrophil ratio,LDH,D-dimer and LUS score all had certain predictive value for airway mucosal erosion occurrence in Mycoplasma pneumonae pneumonia,in which the area under the curve(AUC)of LDH,D-dimer and LUS score was larger,and the predictive value was higher(P<0.05).Conclusion The influen-cing factors of airway mucosal erosion in children patients with Mycoplasma pneumoniae pneumonia should be vigilant to improve their prognosis.

Zinc is an important trace element,and zinc deficiency will lead to a series of metabolic disorders and pathological changes.Zinc deficiency is still a problem among Chinese children.In recent years,the relationship between zinc and respiratory infection disease is becoming a hot issue.This article reviews the impact of zinc supplementation on the morbidity,mortality and the duration of common cold and lower respiratory infections,as well as the possible mechanism of zinc on respiratory diseases.