Table 3.

Domains of E-cigarette use included in the surveys used to assess E-cigarette use among youth and adults in the United States.

Domains	NYTS	YRBSS	MTF	ITC, US-Youth	BRFSS	NHIS	CPS-TUS	HINTS	TPRPS	ITC, US-Adult	NHANES	NSDUH	PATH
Preamble	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓
Preamble includes disposable e-cigarettes				✓			✓		✓				✓
Lifetime or ever use	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓
Age at initial use	✓			✓					✓				✓
Frequency of use	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓			✓
Type or brand used	✓			✓			✓		✓	✓			✓
Flavors	✓			✓			✓		✓	✓			✓
Nicotine content	✓		✓	✓					✓	✓			✓
Accessibility and source	✓	✓	✓	✓			✓		✓	✓			✓
Details about cost							✓			✓			✓
Reason for e-cigarette use	✓		✓	✓			✓		✓	✓			✓
Curiosity and intentions to use	✓			✓					✓				✓
Vaping other substances beside nicotine e.g., cannabis, flavorings	✓		✓	✓	✓				✓	✓		✓	✓
Vaping policy at home or workplace							✓
Secondhand e-cigarette aerosol exposure							✓				✓
Addiction/dependence				✓			✓		✓	✓
Quitting e-cigarettes				✓			✓		✓	✓
Sources of information on e-cigarettes				✓				✓		✓
Knowledge about content, addictiveness, and harmfulness of e-cigarettes				✓				✓	✓	✓
Other tobacco products assessed by survey	•Combustible cigarettes •Cigars/cigarillos/little cigars •Chewing tobacco/snuff/dip •Hookah tobacco •Heated tobacco products •Nicotine pouches •Others e.g., roll-your-own cigarettes, pipe, snus, dissolvable tobacco, bidis,	•Combustible cigarettes •Smokeless tobacco •Cigars/cigarillos/little cigars	•Combustible cigarettes •Smokeless tobacco •Dissolvable tobacco •Snus •Heated tobacco products •Large cigars •Little cigars/cigarillos •Hookah/waterpipe	•Combustible cigarettes •Heated tobacco products •Large cigars •Little cigars/cigarillos •Bidis •Smokeless tobacco •Nicotine pouches •Waterpipe/shisha	•Combustible cigarettes •Chewing tobacco/snuff/snus	•Combustible cigarettes •Cigars/cigarillos/little cigars •Pipe/waterpipe/hookah •Smokeless tobacco	•Combustible cigarettes •Cigars/cigarillos/little cigars •Pipe •Waterpipe/hookah •Smokeless tobacco •Dissolvable tobacco	•Combustible cigarettes •Heated tobacco products	•Combustible cigarettes •Little cigars/cigarillos •Large cigars •Hookah •Heated tobacco products •Chewing tobacco, dip, snuff, snus, dissolvable tobacco	•Combustible cigarettes •Heated tobacco products •Cigars •Cigarillos •Pipe •Hookah/waterpipe •Oral/smokeless tobacco •Nicotine pouches	•Combustible cigarettes •Pipe •Cigars/cigarillos/little cigars •Waterpipe/hookah •Smokeless tobacco	•Combustible cigarettes •Smokeless tobacco •Cigars/cigarillos/little cigars •Pipe	•Combustible cigarettes •Cigar •Pipe •Hookah •Snus •Smokeless tobacco
Strengths	Comprehensively assesses several domains of e-cigarette use in both middle and high school students.	Has additional information on a wide array of other high-risk behaviors including substances misuse.	The 12th grade questionnaire permits longitudinal follow- up of random subsamples of participants.	Very extensive in assessing the various domains of e-cigarette use with additional information on the effects of COVID-19 on vaping habits and e-cigarette accessibility.	The largest repeatedly conducted survey among US adults. It also state-level information and rural/urban residence.	Can be linked to the Medical Expenditure Panel Survey to assess healthcare costs associated with e-cigarette use	Information on secondhand exposure to e-cigarette vapor.	Has information on where participants access information on e-cigarette and other tobacco products.	Comprehensively assesses several domains of e-cigarette use among adults including e-cigarette quit intentions and attempts.	Very extensive in assessing the various domains of e-cigarette use with additional information on perceptions regarding e-cigarette-related laws	Can be linked to the Centers for Medicare and Medicaid Services data to study changes in healthcare utilization and expenditures	Has questions on mental health and psychosocial stressors, hence the association of e-cigarette use with these measures can be assessed	Longitudinal design, with about ten years of follow-up data therefore allowing study of tobacco product transitions and health effects