抽象
显著协会已报道具有10毫米(PM10)和臭氧环境浓度,和每日数呼吸原因死亡的50%的截止值空气动力学直径的颗粒之间。本研究的目的是评估在老年人(>或= 65岁)墨西哥城的居民这样的关联。环境空气污染数据通过广域监测网络提供的。在研究期间,每天平均PM10范围23.4-175.3微克×m个(-3),和臭氧1小时每日最大值范围39.4-216.7 ppb的。信息被编译在死亡的主要和根本原因。分析是根据死亡地点分开进行(之内或之外医院单元的),使用的时间序列的方法。The total number of deaths from all respiratory causes and mortality for chronic obstructive pulmonary diseases (COPD) were significantly related to PM10 over different lags: an increase of 10 microg x m(-3) was related to a 2.9% (95% (CI): 0.9-4.9%) increase and to a 4.1% (95% CI: 1.3%-6.9%) increase with a 3-day lag when death occurred out of medical units, respectively. For deaths occurring in medical units, a longer lag and smaller risk estimate was observed. An interactive effect between PM10 and ozone was detected. This study confirms that there is an important impact of PM10 on respiratory morbidity among elderly subjects. It also indicates that accounting for primary and underlying causes of death, and considering place of death may reduce misclassification and provide more accurate estimates of the adverse impact of PM10 on mortality.