Skip to main content
. 2021 Jun 23;16(6):e0252315. doi: 10.1371/journal.pone.0252315

Fig 3. Effect of mask mandates on earlier-hit or later-hit states.

Fig 3

Robustness check of main event study results (section Fig 1) where we compare the effect of mask mandates on cases, deaths and hospitalization for earlier wave states only (i.e. states who had early spikes of COVID-19 peaks in the pandemic, namely, NY, NJ, MA, CT, MI, DC, RI, IL, WA, PA, GA, VT, MD, FL and LA) vs later wave states. Masks mandates took more time to have an effect on earlier states whereas they had a faster effect on later states. Full regression results are shown in S9 Table in S1 File.