Correlation analysis between Mycoplasma pneumoniae infection in children and environmental climatic factors in Meizhou
Objective To investigate the relationship between Mycoplasma pneumoniae(MP)infection in children and environmental climatic factors in Meizhou,providing data support for the prevention of MP infections in children in this area.Methods A total of 743 children diagnosed with pneumonia who were hospitalized in the department of Pediatrics from September 2022 to August 2023 were enrolled as the study subjects.According to the results of MP antibody tests,the children were divided into MP infection group(186 cases)and non-MP infection group(557 cases).To analyze the epidemiological characteristics of MP infection in children in Meizhou and the correlation between MP infection and environmental climatic factors.Results Among the 743 children diagnosed with pneumonia,the MP infection rate was 22.15%(105/474)in males and 30.11%(81/269)in females.The MP infection rates of children aged 0-<1 year,1-3 years,4-6 years and 7-14 years were 7.39%(15/203),36.17%(85/235),32.02%(57/178)and 22.83%(29/127),respectively.The MP infection rates in spring,summer,autumn and winter were 25.97%(80/308),29.34%(76/259),16.05%(13/81)and 17.89%(17/95),respectively.There were significant differences in gender,age,and seasonal proportions between MP and non-MP groups(X2 values were 5.793,54.167,8.772,respectively,P<0.05).Pearson correlation analysis showed that the number of MP-IgM-positive patients was directly proportional to precipitation,temperature,humidity,AQI,PM2.5,and PM10(r=0.615,P=0.033;r=0.587,P=0.045;r=0.611,P=0.035;r=0.923,P=0.045;r=0.737,P=0.006;r=0.864,P<0.001);inversely proportional to surface wind speed(r=-0.589,P=0.044).Conclusion Mycoplasma pneumoniae infection in children is one of the pathogens of acute respiratory tract infection in Meizhou,and there are many cases of Mycoplasma pneumoniae infection in girls and children under 3 years old.Cases occur throughout the year,with a high incidence in spring and summer.Air quality indicators and environmental climatic indicators are closely related to Mycoplasma pneumoniae infection in children.