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Effectiveness of N95 respirators versus surgical masks against influenza: A systematic review and meta-analysis.

N95 呼吸器与外科口罩对抗流感的有效性: 系统综述和荟萃分析。

  • 影响因子:0
  • DOI:10.1111/jebm.12381
  • 作者列表:"Long Y","Hu T","Liu L","Chen R","Guo Q","Yang L","Cheng Y","Huang J","Du L
  • 发表时间:2020-05-01
Abstract

OBJECTIVE:Previous meta-analyses concluded that there was insufficient evidence to determine the effect of N95 respirators. We aimed to assess the effectiveness of N95 respirators versus surgical masks for prevention of influenza by collecting randomized controlled trials (RCTs). METHODS:We searched PubMed, EMbase and The Cochrane Library from the inception to January 27, 2020 to identify relevant systematic reviews. The RCTs included in systematic reviews were identified. Then we searched the latest published RCTs from the above three databases and searched ClinicalTrials.gov for unpublished RCTs. Two reviewers independently extracted the data and assessed risk of bias. Meta-analyses were conducted to calculate pooled estimates by using RevMan 5.3 software. RESULTS:A total of six RCTs involving 9 171 participants were included. There were no statistically significant differences in preventing laboratory-confirmed influenza (RR = 1.09, 95% CI 0.92-1.28, P > .05), laboratory-confirmed respiratory viral infections (RR = 0.89, 95% CI 0.70-1.11), laboratory-confirmed respiratory infection (RR = 0.74, 95% CI 0.42-1.29) and influenzalike illness (RR = 0.61, 95% CI 0.33-1.14) using N95 respirators and surgical masks. Meta-analysis indicated a protective effect of N95 respirators against laboratory-confirmed bacterial colonization (RR = 0.58, 95% CI 0.43-0.78). CONCLUSION:The use of N95 respirators compared with surgical masks is not associated with a lower risk of laboratory-confirmed influenza. It suggests that N95 respirators should not be recommended for general public and nonhigh-risk medical staff those are not in close contact with influenza patients or suspected patients.

摘要

目的: 以前的荟萃分析得出结论,没有足够的证据来确定N95 呼吸器的效果。我们旨在通过收集随机对照试验 (rct),评估N95 呼吸器与外科口罩预防流感的有效性。 方法: 我们检索了PubMed、EMbase和Cochrane图书馆从开始到 2020 年 1 月 27 日,以确定相关的系统综述。确定了系统评价中纳入的rct。然后我们从上述三个数据库中检索最新发表的rct,并在ClinicalTrials.gov中检索未发表的rct。由两名评价者独立提取数据并评估偏倚风险。采用RevMan 5.3 软件进行Meta分析,计算汇总估计值。 结果: 共纳入 6 个rct,涉及 9 171 名参与者。在预防实验室确诊的流感 (RR = 1.09,95% CI 0.92-1.28,P> .05) 、实验室确诊的呼吸道病毒感染 (RR = 0.89,95% CI 0.70-1.11) 、实验室确诊的呼吸道感染 (RR = 0.74,95% CI 0.42-1.29) 和流感样疾病 (RR = 0.61,95% CI 0.33-1.14)使用N95 呼吸器和外科口罩。荟萃分析表明,N95 呼吸器对实验室证实的细菌定植有保护作用 (RR = 0.58,95% CI 0.43-0.78)。 结论: 与外科口罩相比,使用N95 呼吸器与实验室确诊流感的风险较低无关。它建议N95 呼吸器不应该被推荐给一般公众和非高危医务人员,那些不与流感患者或疑似患者密切接触者。

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翻译标题与摘要 下载文献
影响因子:2.48
发表时间:2020-04-01
来源期刊:Infection
DOI:10.1007/s15010-020-01401-y
作者列表:["Cheng ZJ","Shan J"]

METHODS::There is a current worldwide outbreak of a new type of coronavirus (2019-nCoV), which originated from Wuhan in China and has now spread to 17 other countries. Governments are under increased pressure to stop the outbreak spiraling into a global health emergency. At this stage, preparedness, transparency, and sharing of information are crucial to risk assessments and beginning outbreak control activities. This information should include reports from outbreak sites and from laboratories supporting the investigation. This paper aggregates and consolidates the virology, epidemiology, clinical management strategies from both English and Chinese literature, official news channels, and other official government documents. In addition, by fitting the number of infections with a single-term exponential model, we report that the infection is spreading at an exponential rate, with a doubling period of 1.8 days.

呼吸道感染方向

呼吸道感染分为上呼吸道感染与下呼吸道感染。上呼吸道感染是指自鼻腔至喉部之间的急性炎症的总称,是最常见的感染性疾病。下呼吸道感染是最常见的感染性疾患,治疗时必须明确引起感染的病原体以选择有效的抗生素。

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