【摘要】 目的探讨大气污染对医院呼吸系统疾病日门诊量的影响。方法收集广州市某医院2006年1月1日—2008年12月31日呼吸系统疾病日门诊量的统计资料,结合同时期环境监测和气象资料,采用自回归模型(auto-regression model),在消除了气象、季节等混杂因素的基础上,分析了广州市研究期间大气污染与呼吸系统疾病日门诊量的关系。结果呼吸系统疾病日门诊的就诊量具有明显的星期效应(医院周六、周日休息所致),呼吸系统疾病就诊量较大月份与各污染物浓度较高的月份趋于一致。大气中SO2和NO2的浓度每增加10μg/m3,居民呼吸系统疾病的日门诊就诊量分别各增加3%(P<0.01)。灰霾天气的空气污染物浓度高于非灰霾天气。结论广州市大气主要污染物SO2和NO2浓度的升高引起居民呼吸系统疾病的日门诊就诊量相应增加。更多还原

【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 μg/m3, the daily hospital visits increased by 3%(P<0.01). The concentration of pollutants in haze days was higher than that in non-haze days. Conclusion Increase in daily hospital visits for respiratory diseases in Guangzhou can be caused by air pollutant level increasing.更多还原