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. 2019 Nov 5;322(21):2095–2103. doi: 10.1001/jama.2019.18387

Table 3. Frequency of Use, Flavored Use, Flavor Types, and Usual Brand Among e-Cigarette Users, 2019.

High School Students Middle School Students
Unweighted, No. % (95% CI) Unweighted, No. % (95% CI)
Among Past 30-d e-Cigarette Usersa
Frequency of e-cigarette use in the past 30 d
<20 d 1792 65.8 (62.7-68.8) 749 82.0 (78.8-84.8)
≥20 d 917 34.2 (31.2-37.3) 153 18.0 (15.2-21.2)
Daily e-cigarette useb 564 21.4 (19.0-24.0) 80 8.8 (6.9-11.2)
Exclusive e-cigarette use 1740 63.6 (59.3-67.8) 612 65.4 (60.6-69.9)
Usual brandc
No usual brand 383 13.8 (12.0-15.9) 138 16.8 (13.6-20.7)
JUUL 1520 59.1 (54.8-63.2) 496 54.1 (49.1-59.0)
SMOK 205 7.8 (6.0-10.1) 40 4.1 (2.7-6.1)
Suorin 110 3.1 (2.1-4.5) NAd NAd
blu 77 2.6 (1.9-3.6) 32 4.0 (2.4-6.6)
Vuse 56 2.1 (1.4-3.1) 43 4.6 (3.0-7.0)
NJOY 32 1.2 (0.7-2.1) NAd NAd
Logic 23 0.8 (0.5-1.4) NAd NAd
MarkTen 20 0.8 (0.4-1.4) NAd NAd
Some other brand 256 8.4 (7.2-10.5) 90 10.5 (8.1-13.5)
Among past 30-d Exclusive e-Cigarette Userse
Flavored e-cigarette usef
Flavored 1257 72.2 (69.1-75.1) 376 59.2 (54.8-63.4)
Unflavored 440 25.4 (22.5-28.5) 216 38.1 (33.7-42.8)
Unknown 43 2.5 (1.7-3.6) 20 2.7 (1.6-4.5)
Flavor types reported usedg
Fruit 832 66.1 (62.4-69.5) 248 67.7 (62.6-72.5)
Menthol or mint 703 57.3 (53.3-61.3) 132 31.1 (25.6-37.2)
Candy, desserts, or other sweets 430 34.9 (31.3-38.7) 139 38.3 (32.6-44.2)
Chocolate 26 1.8 (1.2-2.9) 30 8.1 (5.1-12.7)
Alcoholic drink 28 2.3 (1.5-3.5) 14 4.4 (2.5-7.7)
Clove/spice NAd NAd NAd NAd
Other flavor not listed 112 8.8 (7.2-10.7) 40 9.4 (6.7-13.0)

Abbreviation: NA, not available.

a

Past 30-day use of e-cigarettes was determined by asking, “During the past 30 days, on how many days did you use e-cigarettes?” Current use was defined as use on 1 or more days in the past 30 days.

b

Daily e-cigarette use is defined as reported use on all 30 of the past 30 days.

c

For 2019, usual brand of e-cigarettes was determined by response to the question, “During the past 30 days, what brand of e-cigarettes did you usually use?” Participants could select from a list of options to designate their usual brand used including I did not use a usual brand, blu, JUUL, Logic, MarkTen, NJOY, Vuse, or some other brand not listed here (specify). Those who selected “some other brand not listed here” could specify with a write-in response. The write-in responses were examined (n = 725) and recoded. Only recoded responses for SMOK and Suorin were included in this report. There were 38 students (1%) missing brand data.

d

Data are statistically unreliable due to unweighted denominator less than 50 or relative standard error greater than 30%.

e

Exclusive e-cigarette use was defined as use of only e-cigarettes in the past 30 days.

f

Flavored e-cigarette use was determined by the response to the question, “Which of the following tobacco products that you used in the past 30 days were flavored to taste like menthol (mint), alcohol (wine, cognac), candy, fruit, chocolate, or any other flavors? (Select one or more).” Participants could select from a list of options to designate the flavored tobacco product they used in the past 30 days including cigars, cigarillos, or little cigars; chewing tobacco, snuff, or dip; e-cigarettes; tobacco in a hookah or waterpipe; pipe filled with tobacco (not waterpipe); snus; dissolvable tobacco products; bidis; roll-your-own cigarettes; or I did not use any flavored tobacco products in the past 30 days. Among those who reported past 30-day e-cigarette use, those who selected e-cigarettes were defined as current flavored e-cigarette users. Respondents who were past 30-day e-cigarette users and did not select e-cigarettes or selected I did not use any flavored tobacco products in the past 30 days were classified as unflavored. Respondents missing a response were classified as unknown.

g

Among those who used flavored e-cigarettes in the past 30 days, flavor type was determined by responses to the question, “What flavors of tobacco products have you used in the past 30 days? (Select one or more).” Participants could select from a list of options to designate the flavor they had used including menthol or mint; clove or spice; fruit; chocolate; alcoholic drink (such as wine, cognac, margarita, or other cocktails); candy, desserts, or other sweets; or some other flavor not listed here (specify). Respondents could select 1 or more of the 7 prespecified flavors. Those who indicated some other flavor not listed here could specify with a write-in response; the qualitative assessment of these responses (n = 358) is not included in this report. Those who did not select any of the prespecified flavors were set to missing.