摘要
目的定量分析济南市大气污染物SO_2和NO_2对居民心血管疾病应急呼叫事件的急性影响。方法描述性分析2013~2015年济南市逐日气象、空气污染物和居民心血管疾病应急呼叫事件资料。采用基于Quasi-Poisson回归的广义相加模型分别进行SO_2、NO_2与逐日居民心血管疾病应急呼叫事件的单污染物模型、滞后效应(lag1~lag7)和累积滞后效应(lag01~lag07)分析。计算污染物浓度每升高10μg/m~3,居民心血管疾病应急呼叫事件风险增加的超额危险度及95%置信区间(95%CI)。结果 2013~2015年济南市逐日SO_2、NO_2浓度水平及居民心血管疾病应急呼叫事件数的均值分别为73μg/m~3、55μg/m~3及17人。SO_2、NO_2浓度每升高10μg/m~3,当日(lag0)居民心血管疾病应急呼叫事件风险可分别增加0. 41%(95%CI:0. 10%~0. 72%)和0. 99%(95%CI:0.27%~1. 71%),同时存在显著的累积滞后效应。结论济南市大气污染物SO_2、NO_2均对居民心血管疾病应急呼叫事件风险存在急性效应。
Objectives To evaluate the acute effects of air pollutants( SO_2 and NO_2) on the emergency callings( EC)for cardiovascular disease in Jinan City,China. Methods Daily meteorological,air pollutants and EC data between2013 and 2015 were collected for a descriptive analysis. A generalized additive model based on Quasi-Poisson regression was used to estimate the acute effects of each pollutant and EC. The lag pattern of lag days( lag1-lag7) and moving average effect( lag01-lag07) were explored. The excess risk of EC and 95% confidence interval( 95% CI) was calculated with an increase of 10 μg/m~3 in concentrations of SO_2 and NO_2,separately. Results The average of daily SO_2 and NO_2 concentrations and EC number were 73 μg/m~3,55 μg/m~3 and 17 callings per day,respectively. Per 10 μg/m~3 increase in concentrations of SO_2 and NO_2,at lag0,the EC could rise 0. 41%( 95% CI: 0. 10%-0. 72%) and 0. 99%( 95% CI: 0. 27%-1. 71%),respectively. Conclusion An obvious association is found in the acute effects of SO_2 and NO_2 to the emergency callings for cardiovascular disease in Jinan City,China.
引文
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