|Type of variable||Construct||Question||Response options (and recoding)|
|Outcomes||Willingness to receive the vaccine||When a vaccine for the Coronavirus becomes available, I will get it.||Strongly disagree; disagree; agree; strongly agree (recoded as willing or not willing)|
|Willingness to vaccinate the child||When a vaccine for Coronavirus becomes available, I will have my child get it.||Strongly disagree; disagree; agree; strongly agree (recoded as dichotomous)|
|Predictors||Underlying medical conditions||
Who in your household has any of the following:|
-Chronic kidney disease (undergoing dialysis) or liver disease (e.g., cirrhosis, chronic hepatitis)?
-a compromised immune system (immunosuppression)?
-a serious heart condition?
-chronic lung disease?
-moderate to severe asthma?
|Myself; someone in my household other than me; no one (for this measure, we used only respondents’ answers about themselves)|
|Worry||I am worried about getting the Coronavirus||Strongly agree; agree; disagree; strongly disagree|
What level of threat do you think the Coronavirus poses to each of the following?|
you or your family
(Other objects of threat were included on the survey but will be reported elsewhere.)
|Very high threat; high threat; moderate threat; low threat; very low threat; don’t know (Recoded into a four-level item: low/very low; moderate; high/very high; don’t know)|
|Past flu vaccination behavior||When was the last time you were vaccinated for the flu?||Less than 1 year ago; 1–2 years ago; 3 or more years ago; or I have never been vaccinated for the flu|