Thorax:环境空气污染暴露与间质性肺部异常风险和进展的关系

2019-08-08 xing.T MedSci原创

由此可见,暴露于EC可能会增加进行性ILA的风险,但是,与其他环境污染指标的关联尚无定论。

环境空气污染加速了成年人肺功能的下降,然而,关于其在间质性肺病早期发展和进展中的作用的数据十分有限。近日,胸部疾病领域权威杂志Thorax上发表了一篇研究文章,研究人员旨在评估长期暴露于交通和周围污染物与间质性肺部异常(ILA)的几率和ILA进展之间的关系。

研究人员从2008年至2011年2618名Framingham参与者的胸部CT结果中确定了ILA患者。在2002年至2005年期间完成了心脏CT的1846名参与者中,研究人员确定了ILA进展情况,并使用时空预测模型分配了从家庭住址到主要道路的距离以及细颗粒物质(PM2.5)、元素碳(EC,交通相关PM2.5成分)和臭氧的5年平均值。Logistic回归模型根据年龄、性别、体重指数、吸烟状况、吸烟包年、家庭烟草暴露、邻近家庭价值、主要职业、队列和日期进行调整。

在2618例进行胸部CT检查的患者中,176例(6.7%)患有ILA,1361例(52.0%)无ILA,其余均为不确定。1846例先前有心脏CT的患者,118例(6.4%)有ILA进展。在调整后的Logistic回归模型中,5年EC暴露量0.14μg/m3的IQR差异与ILA几率增加1.27(95%CI为1.04至1.55)相关,而 ILA进展的几率更高为1.33(95%CI为1.00至1.76)。PM2.5和O3与ILA发生或ILA进展无关。

由此可见,暴露于EC可能会增加进行性ILA的风险,但是,与其他环境污染指标的关联尚无定论。

原始出处:

Mary B Rice,et al.Ambient air pollution exposure and risk and progression of interstitial lung abnormalities: the Framingham Heart Study.Thorax. 2019.http://dx.doi.org/10.1136/thoraxjnl-2018-212877

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