2009-2013年南京市大气可吸入颗粒物污染与循环系统疾病死亡关系的病例交叉研究  被引量:9

Association between ambient inhalable particle pollution and mortality due to circulatory disease in Nanjing:a case-crossover study

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作  者:路凤[1] 周连[2] 陈晓东[2] 李成橙[3] 王灏晨[1] 徐燕[2] 郑晓瑛[1] 

机构地区:[1]北京大学人口研究所,100871 [2]江苏省疾病预防控制中心环境疾病地方病防制所 [3]中国疾病预防控制中心环境与健康相关产品安全所

出  处:《中华预防医学杂志》2015年第9期817-821,共5页Chinese Journal of Preventive Medicine

摘  要:目的:探讨2009—2013年南京市大气PM10污染对居民循环系统疾病死亡的急性影响,以及季节因素在PM10暴露与循环系统死亡之间关系中的作用。方法收集南京市2009—2013年逐日大气污染物资料、气象资料以及循环系统疾病死亡资料,应用时间分层病例交叉设计的方法分析PM10日均浓度与循环系统疾病死亡之间的关系,计算OR(95%CI)值,并通过分层分析的方式对不同季节PM10暴露对循环系统疾病死亡的效应进行探讨。结果2009—2013年南京市大气PM10、NO2、SO2年平均浓度分别为109.1、51.5、35.4μg/m3。研究期间共记录78299条常住人口循环系统疾病死亡病例,平均每天43例,其中,每日心脏病、缺血性心脏病及脑血管死亡病例分别为19、10、24例。在控制了气温、相对湿度及气压等气象因素的影响后,PM10浓度每上升10μg/m3,南京市居民所有循环系统疾病、心脏病、缺血性心脏病以及脑血管病死亡风险均增加,其OR(95%CI)值分别为1.0024(1.0001~1.0048)、1.0048(1.0013~1.0083)、1.0073(1.0024~1.0123)与1.0005(0.9985~1.0024)。温暖季节居民所有循环系统疾病、脑血管病死亡发生的OR(95%CI)值分别为1.0080(1.0039~1.0122)与1.0057(1.0020~1.0094),寒冷季节的OR(95%CI)值分别为1.0014(0.9985~1.0042)与0.9988(0.9964~1.0012),且暖季的OR值高于冷季。结论南京市大气中PM10浓度的升高可能引起人群循环系统疾病死亡风险的增加,且季节因素可能会对PM10暴露与循环系统死亡之间的关系产生修饰作用。Objective To explore the short-term effects of ambient PM10 pollution on mortality due to circulatory diseases, and to study the modifying effect of season on the association between ambient PM 10 concentration and mortality in Nanjing. Methods Daily mortality, air pollution, and meteorological data from 1 January 2009 to 31 December 2013 in Nanjing were collected;Time-stratified case-crossover design was used to analyze the associations between daily average concentration of inhalable particle (PM10) and mortality due to circulatory diseases;Odds ratios (OR) and 95%confidence intervals (CI) were calculated;And stratified analysis was conducted to compare the mortality risks of circulatory diseases exposed to outdoor PM10 in warm season (May-October) with that in cool season (November-April). Results The mean daily average concentrations of PM10, NO2, and SO2 from 2009 to 2013 in Nanjing were 109.1, 51.5, and 35.4μg/m3, respectively. During our study period, a total of 78 299 circulatory disease deaths were recorded. On average, there were approximately 43 circulatory disease deaths per day; and deaths due to cardiac diseases, ischemic heart disease and cerebrovascular diseases were 19, 10 and 24 per day, respectively. After adjusting for the meteorological variables such as daily temperature, relative humidity and air pressure, a10μg/m3 increment of PM10 was associated with the mortality on values of (OR) 1.002 4(95%CI:1.000 1-1.004 8) for total circulatory diseases, 1.004 8 (95%CI: 1.001 3-1.008 3) for cardiac diseases, 1.007 3 〈br〉 (95%CI: 1.002 4-1.012 3) for ischemic heart disease and 1.000 5 (95%CI: 0.998 5-1.002 4) for cerebrovascular diseases, respectively. In summer season, the OR values of daily mortality for total circulatory diseases and cerebrovascular diseases were 1.008 0(95%CI:1.003 9-1.012 2) and 1.005 7(95%CI:1.002 0-1.009 4), respectively ,the corresponding OR values in cool season were 1.001 4(95%CI:0.998 5-1.004 2) and 0.

关 键 词:空气污染 颗粒物 死亡 循环系统疾病 病例交叉 

分 类 号:R122.26[医药卫生—环境卫生学]

 

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