<p>Contains </p>
<ul>
<li>R Project file</li>
<li>R code and extracted data for a meta-analysis on the effect of PM<sub>2.5</sub> on COVID-19 outcomes including infection, severity, and death. </li>
<li>R code and extracted data of literature search and screeniing, providing classifications for each hit including reasons for exclusion</li>
<li><em>Quality appraisal </em>detailed report</li>
<li>PRISMA checklist</li>
<li>PRISMA abstract checklist</li>
<li>MOOSE checklist</li>
</ul>
<p><br></p>
<p>NOTE: The recent update changes names in the forest plots to match the journal style.</p>