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. 2021 Dec 9;18(24):12982. doi: 10.3390/ijerph182412982

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© 2021 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Different types of face mask protection over time during the COVID-19 pandemic. (A) Daily confirmed cases in Panama as a function of time across the observational study. (B) Multinomial logistic regression showing the predicted probability associated with the frequency of use for different types of face masks (cloth, KN95, surgical, and valve) in public areas over time. The model was performed with 64,006 observations, the categorical variable “other” was omitted from the model. A strict gender-based quarantine was mandated by the Panamanian government from 1 April 2020 to February 2021, was lifted at different moments depending of the province and Rt. A relaxation of this policy with the flexibility of movement (FM) in leaving homes is denoted by dark grey, and the reopening of economic activities is in light grey (RA); the arrow indicates the end of gender-based restrictions (GRE).