Effectiveness of wearing masks during the COVID-19 outbreak in cohort and case-control studies: a systematic review and meta-analysis.

Idevaldo Floriano Wanderley M Bernardo Helio Arthur Bacha Alexandre Naime Barbosa Suzana Erico Tanni Wanderley Marques Bernardo

Published in: Jornal brasileiro de pneumologia : publicacao oficial da Sociedade Brasileira de Pneumologia e Tisilogia (2024)

In this systematic review with meta-analysis, we showed the effectiveness of wearing masks in the prevention of SARS-CoV-2 infection regardless of the type of mask (disposable surgical mask, common masks, including cloth masks, or N95 respirators), although the studies evaluated presented with low quality of evidence and important biases.

Keyphrases

case control
randomized controlled trial
systematic review
respiratory syndrome coronavirus
obstructive sleep apnea
sars cov