BMJ:长期暴露于环境细颗粒物与卒中发病率

2020-01-02 xing.T MedSci原创

由此可见,该研究提供了来自中国的证据,表明长期暴露于相对较高浓度的PM2.5与卒中及其主要亚型呈正相关。这些发现不仅对中国而且对其他中低收入国家的空气污染和卒中预防相关的环境和卫生政策制定也都具有重要意义。

近日,顶级杂志BMJ上发表了一篇研究文章,研究人员旨在探究长期暴露于直径≤2.5μm(PM2.5)的环境细颗粒物对中国成年人总的、缺血性和出血性卒中发生率的影响。

该研究为基于人群的前瞻性队列研究,研究人员在中国15个省开展了“中国动脉粥样硬化性心脏病风险的预测”(China-PAR)项目。参加者为117575名参与中国-PAR项目的基线时没有卒中的受试者。该研究主要结局指标为总的、缺血性和出血性卒中发生率。

2000年至2015年,参与者住所的长期平均PM2.5水平为64.9μg/m3,范围从31.2μg/m3至97.0μg/m3。在900214人次每年的随访期间,研究人员确定了3540例卒中事件,其中63.0%(n=2230)为缺血性,27.5%(n=973)为出血性。与接触PM2.5处于第一个四分位数受试者(<54.5μg/m3)相比,处于最高四分位数受试者(>78.2μg/m3)发生卒中(风险比为1.53,95%置信区间为1.34至1.74 )、缺血性卒中(1.82、1.55至2.14)和出血性卒中(1.50、1.16至1.93)的风险增加。PM2.5浓度每增加10μg/m3,发生卒中、缺血性卒中和出血性卒中的风险增加分别为13%(1.13,1.09至1.17)、20%(1.20,1.15至1.25)和12 %(1.12,1.05至1.20)。研究人员观察到长期暴露于PM2.5与卒中之间的几乎呈线性暴露-反应关系。

由此可见,该研究提供了来自中国的证据,表明长期暴露于相对较高浓度的PM2.5与卒中及其主要亚型呈正相关。这些发现不仅对中国而且对其他中低收入国家的空气污染和卒中预防相关的环境和卫生政策制定也都具有重要意义。

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    2020-07-06 lisa449
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    2020-10-12 gaoxiaoe
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    2020-01-03 健健

    卒中虽然是临床上常见病,溶栓,取栓等血管内治疗也很成熟,但是仍然有很多未知问题有待认知!

    0