Table A1.

Workplace screening measures in the COVID Impact Survey

Screen	Self‐report or measured	Measures included	# of questions to receive a positive screen
Therm (99)	Measured	Temperature of 99.0 F or higher using a thermometer.	1/1
Fever (short)	Self‐reported	Any self‐reported fever symptoms from a 3‐item fever checklist.	1/3
Fever (short 2+)	Self‐reported	2+ self‐reported fever symptoms from a 3‐item fever checklist.	2/3
Fever	Self‐reported	Any self‐reported fever symptoms from a 17‐item health symptom checklist. 3 possible fever items.	1/3
Fever (2+)	Self‐reported	2+ self‐reported fever symptoms from a 17‐item health symptom checklist. 3 possible fever items.	2/3
COVID	Self‐reported	Any self‐reported COVID symptoms from a 17‐item health symptom checklist. 7 possible COVID items; includes 3 possible items in fever (long).	1/7
COVID (2+)	Self‐reported	2+ self‐reported COVID symptoms from a 17‐item health symptom checklist. 7 possible COVID items; includes 3 possible items in fever (long).	2/7
2+ risk factors	Self‐reported	2+ risk factors for COVID complications from multiple questions about underlying health conditions.	2/9

Notes: Table defines each screening measure we consider. See text for details. Table A4 lists COVID and fever symptoms from the long symptom checklist as well as all items from the short fever checklist. The full list of symptoms is available at https://static1.squarespace.com/static/5e8769b34812765cff8111f7/t/5e99d902ca4a0277b8b5fb51/1587140880354/COVID-19+Tracking+Survey+Questionnaire+041720.pdf.

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