医务人员佩戴折叠型医用防护口罩适合因数比较和影响因素分析

Comparison of fit factors of medical workers wearing foldable medical respirators and analysis of influencing factors

目的研究常见两种类型医用防护口罩适合因数的差异以及不同人群特征对医用防护口罩适合性的影响,为科学选择和佩戴医用防护口罩提出指导意见。方法选取北京市10家不同级别、不同专业类型医疗机构医务人员350人进行基本信息采集并用TSI仪器对3M 9132型、思沃D918型2种医用防护口罩进行适合因数测试,评估不同人群特征对适合性检测结果的影响。结果两种类型口罩,3M 9132、思沃D918的适合性测试通过率分别为25.43%、81.14%。两种类型口罩不同动作对测试结果影响不同,上下摆头动作合格率最低(3M为27.71%,思沃为16.00%)。对适合因数的可能影响因素分析结果显示,3M 9132型口罩的适合因数与BMI及性别的差异有统计学意义(P<0.01)。结论两种类型医用防护口罩对不同个体的适合因数不同,与人群特征有关,个体BMI值可作为选择医用防护口罩的一个参考因素,选择医用防护口罩前应评估适合性。

Objective To study the differences in the fit factors of two commonly used types of medical respirators and the influences on the fitness by different characteristics of the population,so as to provide guidance for scientific selection and wearing protective medical respirators.Methods A total of 350 medical workers from 10 medical institutions of different levels and types in Beijing were selected to collect basic information.The fit factors of 2 types of medical protective respirators,type 9132 from 3M and type D918 from Beijing Sinovo,were tested using a TSI instrument for the evaluation of the influence on fitness by different populational characters.Results The pass rates of the two types of respirator,3M 9132 and Sinovo D918 in the fitness test were 25.43% and 81.14%,respectively.The influences on fitness by the actions between the two respirators were different.Head moving up and down showed the lowest pass rate(27.71% for 3M and 16% for Sinovo).For 3M 9132 respirator,the differences in fit factors caused by BMI and gender were statistically significant(P<0.01).Conclusions Different types of medical protective respirators had different fit factors for different individuals and related to population characteristics.Individual BMI could be a criterion for selecting medical protective respirators.The choices should be made after fitness evaluation.