Ultraviolet germicidal irradiation of office ventilation systems reduces work-related mucosal and respiratory symptoms

Evidence-based Healthcare Pub Date : 2004-06-01 Epub Date: 2004-05-06 DOI:10.1016/j.ehbc.2004.03.022

Klaus P Kühn PhD (Commentry Author) , Iris F Chaberny MD (Commentry Author)

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引用次数: 1

Abstract

Question

What is the effect of ultraviolet germicidal irradiation (UVGI) in office ventilation systems on worker's health and wellbeing?

Study design

Double blind multiple crossover trial.

Main results

Ultraviolet germicidal irradiation (UVGI) lights significantly reduced the incidence of overall work-related symptoms (14% of symptoms only reported when UVGI on vs. 18% symptoms only reported only when UVGI off; OR 0.8, 95% CI 0.7 to 0.99). UVGI significantly reduced work-related mucosal and respiratory symptoms but not systemic or musculoskeletal symptoms (OR for mucosal symptoms 0.7, 95% CI 0.6 to 0.9; OR for respiratory symptoms 0.6, 95% CI 0.4 to 0.9; OR for systemic symptoms 1.1, 95% CI 0.9 to 1.3; OR for musculoskeletal symptoms 0.8, 95% CI 0.6 to 1.1). UVGI reduced microbial and endotoxin concentrations on irradiated surfaces within ventilation systems by 99% (95% CI 67% to 100%).

Authors’ conclusions

UVGI may be a cost-effective method of alleviating work-related symptoms caused by microbial contamination of office ventilation systems.

查看原文本刊更多论文

办公室通风系统的紫外线杀菌照射可减少与工作有关的粘膜和呼吸道症状

问题办公室通风系统中的紫外线杀菌辐射（UVGI）对工人的健康和幸福有什么影响？研究设计双盲多交叉试验。主要结果紫外线杀菌照射（UVGI）显著降低了总体工作相关症状的发生率（14%的症状仅在UVGI开启时报告，18%的症状仅当UVGI关闭时报告；OR 0.8，95%CI 0.7至0.99）（粘膜症状OR 0.7，95%CI 0.6至0.9；呼吸道症状OR 0.6，95%CI 0.4至0.9；全身症状OR 1.1，95%CI 0.9至1.3；肌肉骨骼症状OR 0.8，95%CI 0.6-1.1）。UVGI使通风系统内受照射表面的微生物和内毒素浓度降低99%（95%CI 67%至100%）。作者的结论是，UVGI可能是一种成本效益高的方法，可以缓解办公室通风系统微生物污染引起的工作症状。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Evidence-based Healthcare

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