蓄酸电池厂铅作业工人血铅异常回顾性队列研究
发布时间:2018-07-16 15:01
【摘要】:目的分析蓄电池厂铅作业工人血铅异常的影响因素。方法采用典型抽样方法,以某蓄电池厂的铅作业工人为研究对象,进行为期3年的回顾性队列研究。起点时间为2011年9月,起点事件为血铅水平400.0μg/L;观察截止时间为2014年9月,终点事件为血铅水平≥400.0μg/L(血铅异常)。采用COX回归分析分析血铅异常的影响因素。结果共有244名铅作业工人纳入研究。2011年9月时,基线铅作业工龄中位数(M)为6.3(0.7~35.9)年,基线血铅水平M为321.5(215.7~398.7)μg/L;3年间共有78人发生血铅异常,血铅异常发生率为32.0%。多因素COX回归分析结果显示,工作时不佩戴口罩、基线血铅水平300.0μg/L、工作场所铅超标和铅作业工龄5.0年者发生血铅异常的风险相对较高(P0.01),相对危险度分别为工作时佩戴口罩、基线血铅水平≤300.0μg/L、工作场所铅不超标、铅作业工龄≤5.0年者的6.89、4.00、9.02和2.93倍。结论应加强对工作时不佩戴口罩、基线铅水平300.0μg/L、工作场所空气中铅超标和铅作业工龄5.0年的蓄电池厂铅作业工人的职业性慢性铅中毒防治工作。
[Abstract]:Objective to analyze the influencing factors of abnormal blood lead in lead-exposed workers in battery factory. Methods A 3-year retrospective cohort study was conducted with lead-exposed workers in a battery factory by a typical sampling method. The starting point time is September 2011, the starting point event is 400.0 渭 g / L of blood lead level, the observation deadline is September 2014, and the end point event is blood lead level 鈮,
本文编号:2126757
[Abstract]:Objective to analyze the influencing factors of abnormal blood lead in lead-exposed workers in battery factory. Methods A 3-year retrospective cohort study was conducted with lead-exposed workers in a battery factory by a typical sampling method. The starting point time is September 2011, the starting point event is 400.0 渭 g / L of blood lead level, the observation deadline is September 2014, and the end point event is blood lead level 鈮,
本文编号:2126757
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