机构：[1]Fuwai Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China.[2]Central China Subcenter of the National Center for Cardiovascular Diseases, Zhengzhou, China.[3]National Clinical Research Center, Fuwai Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China.[4]Xiangya Hospital, Central South University, Changsha, China.[5]Fuwai Yunnan Cardiovascular Hospital, Kunming, China.[6]Public Health College, Kunming Medical University, Kunming, China.[7]National Institute of Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China.
Face masks are recommended to prevent transmission of coronavirus disease 2019 (COVID-19); however, there is scarce evidence on their protection efficacy and ways to improve it.
To determine the proportion of improper face mask use, the factors associated with face mask protection efficacy, and ways to improve efficacy.
This population-based cross-sectional study was conducted in China from July to August 2020 in 5 kinds of public places. Participants included convenience samples of individuals wearing face masks and able to taste the check solution.
Demographic and socioeconomic characteristics, including sex, age, and education level; information on face mask model and the worn duration was recorded.
The main outcome as airtightness, assessed by detecting face-to-face mask gaps, movement of cotton fiber placed at the face mask edges, and using a qualitative fit test with a bitter solution spray. Masks were further assessed for whether sealing the upper face mask edge with an adhesive tape strip was associated with improved face mask airtightness.
Among 6003 face mask wearers enrolled, the mean (SD) age of participants was 31.1 (13.7) years, and 3047 participants (50.8%) were female. The first qualitative fit test found air leakage in 2754 participants (45.9%; 95% CI, 44.6%-47.1%), which was mostly attributable to gaps at the upper face mask edge. After sealing the upper face mask edge with an adhesive tape strip, 69.7% (95% CI, 68.0%-71.5%) of masks that had exhibited leakage became airtight in the second qualitative fit test, and the rate of airtightness reached 96.2% (95% CI, 95.4%-96.8%) in a third qualitative fit test after new surgical face masks with tape on the upper edge were provided to those who had not converted initially. The tape was well tolerated; overall, 6 participants (1.2%) reported a rash and 24 participants (5.8%) reported significant discomfort.
In this study of face mask fit among participants in China, although most people used face masks in public places, compromised protection due to suboptimal airtightness was common. The simple approach of sealing the upper edge of the face mask with an adhesive tape strip was associated with substantially improved its airtightness.
基金：
Chinese Academy of Medical Sciences Innovation Fund for
Medical Sciences (grants 2017-I2M-4-001 and 2017-I2M-B&R-02); Sanming Project of Medicine in Shenzhen;
National Key Research and Development Program of China (grant No. 2016YFC1302004); National Natural
Science Foundation of China, General Program (grants 81670289 and 81970444); and Key Laboratory of
Nanomaterial, Chinese Academy of Medical Sciences (grant No. 2019PT350005).
语种：
外文
PubmedID：
中科院(CAS)分区：
出版当年[2021]版：
大类|2 区医学
小类|2 区医学：内科
最新[2023]版：
大类|1 区医学
小类|1 区医学：内科
第一作者：
第一作者机构：[1]Fuwai Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China.[2]Central China Subcenter of the National Center for Cardiovascular Diseases, Zhengzhou, China.
通讯作者：
通讯机构：[5]Fuwai Yunnan Cardiovascular Hospital, Kunming, China.[7]National Institute of Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China.[*1]Fuwai Yunnan Cardiovascular Hospital, Kunming, 650221, China[*2]National Institute of Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, 100050, China
推荐引用方式(GB/T 7714)：
Pan Xiangbin,Li Xi,Kong Pengxu,et al.Assessment of Use and Fit of Face Masks Among Individuals in Public During the COVID-19 Pandemic in China.[J].JAMA network open.2021,4(3):e212574.doi:10.1001/jamanetworkopen.2021.2574.
APA：
Pan Xiangbin,Li Xi,Kong Pengxu,Wang Lin,Deng Rundi...&Sun Chengye.(2021).Assessment of Use and Fit of Face Masks Among Individuals in Public During the COVID-19 Pandemic in China..JAMA network open,4,(3)
MLA：
Pan Xiangbin,et al."Assessment of Use and Fit of Face Masks Among Individuals in Public During the COVID-19 Pandemic in China.".JAMA network open 4..3(2021):e212574
医学