Relationship between Air Pollutant and Daily Hospital Visits for Respiratory Diseases in Guangzhou:a Time-Series Study / 环境与健康杂志

ABSTRACT

Objective To know the relationship between air pollutants and daily hospital visits for respiratory diseases in Guangzhou. Methods The data of daily hospital visits for respiratory diseases in a hospital in Guangzhou during 2006 to 2008, along with the daily meteorological factors, air pollutants concentration (NO2, PM10,PM2.5 and SO2) were collected. The time series analysis auto-regression model was used, considering the potential confounding factors such as seasonal and meteorological factors. Results Daily hospital visits for respiratory diseases presented a significant week effect, the time of higher daily hospital visits for respiratory diseases was the same of higher concentration of pollutants. When SO2 and NO2 increased by 10 ?g/m3, the daily hospital visits increased by 3%(P