Table 1

Participant characteristics, n=810

Demographic Characteristics
 18–29 years15920%
 30–39 years25131%
 40–54 years20425%
 55+ years18723%
 Mean (SD)41.9(14.6)
Gender identity
 Neither man nor woman or prefer to self-describe132%
Gay, lesbian or bisexual9412%
Hispanic ethnicity8110%
 Black or African American9712%
 Asian or Pacific Islander344%
 American Indian or Alaskan Native152%
 Other race or multiracial445%
 High school diploma or less22027%
 Some college20125%
 Bachelor’s or associate’s degree27434%
 Graduate degree11414%
Household income, annual
 US $0–24 99920025%
 US $25 000–49 99919524%
 US $50,000–74 99914818%
 US $75 000–99 9998510%
 US $100 000+18222%
Low income (<150% of FPL)23629%
Political party identification
 Independent or other17622%
Behaviours and Health Status
Cigarette smoking frequency
 Not at all587%
 Some days17421%
 Every day57871%
Vaping frequency
 Not at all35143%
 Some days27634%
 Every day18323%
Ever used Twitter49962%
Have health condition that increases COVID-19 risk45056%
Probably or definitely had COVID-199311%
Knew someone who had COVID-1932840%
  • Characteristics did not differ by experimental conditions in either the vaping or smoking experiments (all p>0.05). Missing demographic data ranged from 0.0% to 1.6%. Health conditions that increase COVID-19 risk included heart disease or history of heart attack; stroke; hypertension or high blood pressure; asthma; cancer; chronic lung disease including chronic obstructive pulmonary disease; emphysema or chronic bronchitis; obesity (body mass index ≥30 kg/m2); diabetes; liver disease including cirrhosis; chronic kidney disease; or autoimmune disease including lupus, multiple sclerosis, rheumatoid arthritis, psoriasis, Crohn’s disease, and inflammatory bowel disease.

  • FPL, US Federal Poverty Level for 2020.