Abstract：
BACKGROUND: Verifying the fit of disposable N95/P2 half-face respirators is critical. There are currently no objective ways to evaluate the implementation when used. Previously, we showed that only 26% of healthcare workers achieve appropriate fit at the point of use.
METHODS: 657 quantitative fit tests were conducted on 166 subjects, using four different respirator styles. Randomization was performed; controls employing standard \'fit-check\' and intervention using a custom built infra-red video kiosk. Primary outcome was passing rates of quantitative fit, with secondary outcomes of respirator type, gender, race, and previous experience.
RESULTS: Intervention demonstrated significantly higher pass rate (50.6%) compared to controls (30.8%). The odds of passing with IR Kiosk compared to control was 2.3 (OR 2.3 95%CI 1.8 to 2.9, p<0.001). Duckbill style improved the greatest (OR 4.1 95%CI 2.1 to 7.9, p<0.001), and Tri-fold also showing substantial benefit (OR 2.66 95%CI 1.4 to 5.2, p<0.001). Gender and race did not influence the outcomes when using the kiosk, nor did previous experience.
CONCLUSIONS: A custom point of use kiosk improved the odds of achieving a satisfactory fit of common respirator styles, independent of participant demographics. These findings open the door to addressing a critical gap in respiratory protection programs by providing individual assessment and interventions that improve worker safety at the time of highest risk.
UNASSIGNED: The data that support the findings of this study are available on request from the corresponding author. The data are not publicly available due to their containing information that could compromise the privacy of research participants.
METHODS: 657 quantitative fit tests were conducted on 166 subjects, using four different respirator styles. Randomization was performed; controls employing standard \'fit-check\' and intervention using a custom built infra-red video kiosk. Primary outcome was passing rates of quantitative fit, with secondary outcomes of respirator type, gender, race, and previous experience.
RESULTS: Intervention demonstrated significantly higher pass rate (50.6%) compared to controls (30.8%). The odds of passing with IR Kiosk compared to control was 2.3 (OR 2.3 95%CI 1.8 to 2.9, p<0.001). Duckbill style improved the greatest (OR 4.1 95%CI 2.1 to 7.9, p<0.001), and Tri-fold also showing substantial benefit (OR 2.66 95%CI 1.4 to 5.2, p<0.001). Gender and race did not influence the outcomes when using the kiosk, nor did previous experience.
CONCLUSIONS: A custom point of use kiosk improved the odds of achieving a satisfactory fit of common respirator styles, independent of participant demographics. These findings open the door to addressing a critical gap in respiratory protection programs by providing individual assessment and interventions that improve worker safety at the time of highest risk.
UNASSIGNED: The data that support the findings of this study are available on request from the corresponding author. The data are not publicly available due to their containing information that could compromise the privacy of research participants.
摘要：
背景：验证一次性N95/P2半面呼吸器的贴合性至关重要。目前没有客观的方法来评估使用时的实现。以前,我们发现，只有26%的医护人员在使用时达到了适当的健康。
方法：对166名受试者进行了657次定量拟合测试，使用四种不同的呼吸器样式。进行了随机化；对照组采用标准的“适合检查”，并使用定制的红外视频亭进行干预。主要结果是定量拟合的通过率，次要结果是呼吸器类型，性别,种族,和以前的经验。
结果：与对照组（30.8%）相比，干预显示出明显更高的通过率（50.6%）。与对照组相比，通过IRKiosk的几率为2.3（OR2.395CI1.8至2.9，p<0.001）。鸭嘴风格改善最大(OR4.195CI2.1至7.9，p<0.001)，和三倍也显示出实质性的益处（OR2.6695CI1.4至5.2，p<0.001）。使用信息亭时，性别和种族不会影响结果，以前的经验也没有。
结论：定制使用终端提高了实现普通呼吸器样式的满意匹配的几率，独立于参与者的人口统计数据。这些发现通过提供个人评估和干预措施，在最高风险时提高工人的安全性，为解决呼吸保护计划中的关键差距打开了大门。
■支持本研究结果的数据可应相应作者的要求提供。这些数据不是公开的，因为它们包含的信息可能会损害研究参与者的隐私。
方法：对166名受试者进行了657次定量拟合测试，使用四种不同的呼吸器样式。进行了随机化；对照组采用标准的“适合检查”，并使用定制的红外视频亭进行干预。主要结果是定量拟合的通过率，次要结果是呼吸器类型，性别,种族,和以前的经验。
结果：与对照组（30.8%）相比，干预显示出明显更高的通过率（50.6%）。与对照组相比，通过IRKiosk的几率为2.3（OR2.395CI1.8至2.9，p<0.001）。鸭嘴风格改善最大(OR4.195CI2.1至7.9，p<0.001)，和三倍也显示出实质性的益处（OR2.6695CI1.4至5.2，p<0.001）。使用信息亭时，性别和种族不会影响结果，以前的经验也没有。
结论：定制使用终端提高了实现普通呼吸器样式的满意匹配的几率，独立于参与者的人口统计数据。这些发现通过提供个人评估和干预措施，在最高风险时提高工人的安全性，为解决呼吸保护计划中的关键差距打开了大门。
■支持本研究结果的数据可应相应作者的要求提供。这些数据不是公开的，因为它们包含的信息可能会损害研究参与者的隐私。
