Table 1.

Definitions of Tobacco and Nicotine Use Categories Within the Population Assessment of Tobacco and Health (PATH) Study

Tobacco and nicotine use categories	PATH Study Definition
Ever tried	“Respondents who have ever used [the tobacco product]… even one or two times.”
Used in past 30 days	“Respondents who have used [the tobacco product] within the past 30 days.”
Current experimental use	Respondents who endorsed use in past 30-days and “have never used [the tobacco product] fairly regularly, and currently use every day or some days.”
Current experimental every day use	Respondents who endorsed current experimental use, denied established regular use and reported using every day in the past 30 days.b
Ever established regular use a	“Respondents who have ever used [the tobacco product] fairly regularly.”
Former established regular use a	“Respondents who have ever used [the tobacco product] fairly regularly, have not used them within the past 12 months or currently use not at all.”
Current established regular use a	“Respondents who have ever used [the tobacco product], have ever used [the product] fairly regularly, and currently use every day or some days.”
Current established every day use a	“Respondents who have ever used [the tobacco product], have ever used [the product] fairly regularly, and currently use every day.”

^aReported for non-cigarette tobacco or nicotine use only because we use a sample of “never regular smokers” (<100 lifetime cigarettes) for this analysis. ^bFor example, someone who smoked cigarettes every day for the past 30 days but reported <100 lifetime cigarettes was defined as a current experimental every day user by the PATH Study. PATH = Population Assessment of Tobacco and Health.