FIGURE 1.

Frequent use* of selected tobacco products† among U.S. middle and high school students who currently used each tobacco product^§ — National Youth Tobacco Survey, 2017–2018^¶

Abbreviation: e-cigarettes = electronic cigarettes.

* Frequent tobacco product use defined as use of each respective tobacco product on ≥20 of the past 30 days.

^† Frequency of use during the past 30 days was not available for pipe tobacco in the 2017 or 2018 surveys.

^§ Among youths who currently report using each respective tobacco product, defined as a response other than "0 days" to each of the following questions: E-cigarettes: "During the past 30 days, on how many days did you use e-cigarettes?"; Cigarettes: "During the past 30 days, on how many days did you smoke cigarettes?"; Cigars: "During the past 30 days, on how many days did you smoke cigars, cigarillos, or little cigars?"; Smokeless tobacco: “During the past 30 days, on how many days did you use chewing tobacco, snuff, or dip?"; Hookahs: "During the past 30 days, on how many days did you smoke tobacco in a hookah or waterpipe?" For all questions, answer choices included, “0 days, 1 or 2 days, 3 to 5 days, 6 to 9 days, 10 to 19 days, 20 to 29 days, and All 30 days."

^¶ During 2017–2018, a significant increase in frequent use of e-cigarettes was observed only among high school students (p<0.05). No significant changes were observed for any other tobacco product during 2017–2018 among middle or high school students