Ontology highlight
ABSTRACT: Importance
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.Objective
To determine the proportion of improper face mask use, the factors associated with face mask protection efficacy, and ways to improve efficacy.Design, setting, and participants
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.Exposures
Demographic and socioeconomic characteristics, including sex, age, and education level; information on face mask model and the worn duration was reco
SUBMITTER: Pan X
PROVIDER: S-EPMC7953274 | biostudies-literature | 2021 Mar
REPOSITORIES: biostudies-literature