Relationship between air pollution and hospitalization of children respiratory disease in Shenzhen city

Objective To know the relationship between air pollution and the number of pediatric respiratory disease hospitalization in Shenzhen.Methods Based on the data of 2006,concentrations of PM10,NO₂ and O₃ and the hospitalization of children with upper respiratory tract infection and pneurmonia were analyzed with linear regression.Results There was a significant positive correlation between the levels of PM10,NO₂ and O₃ and the number of children suffering from upper respiratory tract infection with the correlation between the levels of NO₂ and O₃ and the hospitalization of children suffering from pneumonia with the correlation coefficients of 0.719 and 0.692(P<0.05).A 10μg/m³ increase in PM10 was associated with a 0.135% increase of hospitalization of upper respiratory tract infection;a 10μg/m³ increase in NO₂ was associated with 0.254% and 11.29% increases of hospitalization of upper respiratory tract infection and pneumonia.A 10μg/m³ increase in O₃ was associated with 0.173% and 0.794% increases in upper resp iratory tract infection and pneumonia.Conclusion The inerease of PM10,NO₂ and O₃ pollution could lead to a corresponding increase in the hositalization of children with respiratory diseases.