| Authors | No. of Domains | List of Domains | Intra-Domain Coding (binary or ordinal scale) | Data Source(s) |
|---|---|---|---|---|
| Adolph et al. [2] | 5 |
gathering restrictions; school closures; restaurants; non-essential businesses; stay-at-home orders | Binary (later supplemented to include additional domains and some intra-domain scales) | Primary source policies |
| Krishnamachari et al. [3] | 5 |
gathering restrictions; school closures; restaurants; non-essential businesses; stay-at-home orders | Binary | Adolph et al./Fullman et al. database |
| McGrail et al. [13] | 1 | lockdowns | Binary | Aura Vision Global COVID-19 Lockdown Tracker (which primarily relies on media reports) |
| Killeen et al. [5] | 6 |
stay at home order; gathering ban greater than 50; gathering ban greater than 500; public school; restaurant dine-in; entertainment/gym | Binary | Media reports |
| Courtemanche et al. [6] | 4 |
large event bans; entertainment-related businesses; school closures; shelter in place orders | Binary | Killeen et al. dataset |
| Fowler et al. [7] | 1 | Stay at home orders | Binary | New York Times website and local media reports |
| Abouk & Heydari [8] | 6 | statewide stay-at-home orders; stay-at-home orders only applying to certain populations or only certain counties or cities; non-essential business closures; large gathering bans; school closure mandates; restaurant and bar limits | Binary | Primary source policies collected by Kaiser Family Foundation “State Data and Policy Actions” |
| Strickland et al. [9] | 3 |
stay at home orders; non-essential services closed; educational facilities closed | Binary | UW IHME website |
| Lasry et al. [10] |
5 (statewide policy domains) 6 (local policy domains) |
limits on mass gatherings; limits on senior living facilities; school closures; limits on bars and restaurants; stay-at-home/shelter-in-place orders; curfews | Binary | Primary source policies and media reports |
| Hale et al. [11] | 6 | school closing; workplace closing; cancel public events; restrictions on gatherings; close public transport; and stay at home requirements | Ordinal scale (0–2; 0–3; or 0–4) | Media reports; primary source policies |