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细颗粒物暴露对尘肺Ⅰ期者心脏二尖瓣EF斜率的影响

Practical Preventive Medicine(2018)

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Abstract
目的 探讨细颗粒物(fine particulate matters,PM2.5)暴露对二尖瓣EF斜率降低检出率的影响. 方法 选择同期体检的开滦集团员工,已确诊为尘肺Ⅰ期者为暴露组,无粉尘接触史者为对照组,应用SPSS 17.0对两组人群心脏超声测得的EF斜率结果进行统计分析. 结果 暴露组二尖瓣EF斜率[(73.20±20.53) mm/s]显著低于对照组[(78.74±24.11) mm/s] (t=14.521,P<0.001),暴露组二尖瓣EF斜率降低检出率(52.4%)高于对照组(40.5%)(x2=22.874,P<0.001).细颗粒物暴露是仅次于年龄、收缩压的影响二尖瓣EF斜率降低的危险因素,剔除BMI等因素后,OR值为1.744(95%CI:1.395~2.180). 结论 细颗粒物暴露是二尖瓣EF斜率降低的独立危险因素.
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