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* Any tobacco use was defined as “every day” or “some days” use of cigarettes; cigars, cigarillos, or filtered little cigars; pipes; water pipes/hookah; electronic cigarettes; or smokeless tobacco (snus, dissolvable tobacco products, snuff, chewing tobacco, or dip).
** Any combustible tobacco use was defined as “every day” or “some days” use of cigarettes; cigars, cigarillos, or filtered little cigars; pipes; or water pipes/hookah.
*** Reported smoking at least 100 cigarettes during their lifetime and now smoked “every day” or “some days.”
**** Smokeless tobacco users were defined using three product types: 1) chewing tobacco, snuff, or dip; 2) snus; and 3) dissolvable tobacco products. Chewing tobacco, snuff, or dip users were respondents who reported using the product at least 20 times during their lifetime and now used it “every day” or “some days.” Snus or dissolvable tobacco product users were respondents who reported using each respective product at least once during their lifetime and now used it “every day” or “some days.”
~ Reported smoking at least 50 cigars, cigarillos, or filtered little cigars during their lifetime and now smoked “every day” or “some days.”
~~ Reported smoking electronic cigarettes at least once during their lifetime and now smoked “every day” or “some days.”
+ Reported smoking tobacco in a hookah at least once during their lifetime and now smoked “every day” or “some days.”
++ Reported smoking a regular pipe filled with tobacco at least 50 times during their lifetime and now smoked “every day” or “some days.”