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Effect of ambient particulate matter on hospitalization of patients with respiratory diseases: a case crossover study in Qingdao City
Pages: 961-964
Year: Issue:  7
Journal: Occupation and Health

Abstract: [Objective] To explore the effect of ambient particulate matter (PM2.5) on hospitalization of patients with respiratory diseases,provide information for the study on effect of atmospheric particulate matter on human health and the management of atmospheric particulate matter.[Methods] The data of inpatients with respiratory diseases (asthma,pneumonia and COPD) in the Affiliated Hospital of Qiingdao University from January lst,2014 to December 31st,2015 were collected.The case crossover design and conditional logistic regression was used to analyze the impact of PM2.5 on hospitalization of patients with respiratory diseases.[Results] For the single-pollutant model,after controlling for daily average temperature factor,the maximum correlation was found between PM2.5 concentration and hospitalization of patients with respiratory diseases.Every increase of 10 μg/m3 in PM2.5 concentration,the corresponding OR value was 1.012 (95% CI:1.01-1.015),that is the inpatients with respiratory diseases increased by 1.2%,and the results were statistically significant (P<0.05).For multi-pollutant models,after controlling for the influences by SO2,NO2,SO2+NO2 respectively,the OR value for PM2.5 concentration to hospitalization of patients with respiratory diseases was respectively 1.017 (1.014-1.02),1.017 (1.014-1.019) and 1.018 (1.015-1.021),and the results were statistically significant (P<0.05).[Conclusion] There is correlation between PM2.5 concentration and hospitalization of patients with respiratory diseases in Qingdao City.The hospitalization rate of respiratory diseases increases with the increase of PM2.5 concentration.
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