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. Author manuscript; available in PMC: 2020 Apr 1.
Published in final edited form as: J Adolesc Health. 2018 Sep 8;64(4):487–493. doi: 10.1016/j.jadohealth.2018.07.012

Table 2:

Characteristics Regarding Age of First Use, Lifetime Vaping of Multiple Substances, First Substance Vaped, and Types of Substances Vaped

M(SD) or % n
Age of First Usea
    Smoking Cigarettes 13.1 (2.5) 1912
    Cannabis (Any Method) 13.7 (1.8) 2630
    Smoking Cannabis 13.8 (1.9) 2616
    Vaping Nicotine 14.5 (1.5) 1858
    Vaping Flavors 14.7 (1.5) 2147
    Cannabis Edibles 14.9 (1.6) 1596
    Vaping Cannabis 15.3 (1.5) 1156
Lifetime Vaping of Multiple Substances Among Different Subgroups
    Ever Vaped Combination of Flavor and Nicotine Among Those Who Had Vaped Flavorb 55.5 2147
    Ever Vaped Combination of Flavor and Cannabis Among Those Who Had Vaped Flavor and Vaped Cannabisc 20.1 1017
    Ever Vaped Combination of Nicotine and Cannabis Among Those Who Had Vaped Nicotined 13.8 1858
First Substance Vaped Among Those Who Had Ever Vaped Nicotinee 883
    Nicotine 69.1
    Cannabis 26.7
    Cannabis and Nicotine Mix 4.2
First Substance Vaped Among Those Who Had Vaped Cannabis and Vaped Flavor c 1017
    Cannabis and Flavor Mix 1.2
    Nicotine 7.2
    Cannabis 19.2
    Nicotine and Flavor Mix 25.7
    Flavor 40.1
    Unknown 6.7
Types of Cannabis Ever Vaped Among Those Who Had Vaped Cannabisf 1156
    Cannabis Plant Material 74.1
    Cannabis Concentrates 68.2
    E-liquids Containing Cannabis 29.1

Note: N = 2630.

a:

Among those adolescents who reported ever using each respective substance and method.

b:

Among those adolescents who reported ever vaping flavor.

c:

Among those adolescents who have ever vaped cannabis and vaped flavor.

d:

Among those adolescents who reported ever vaping nicotine

e:

Among those adolescents who have ever vaped cannabis and vaped nicotine.

f:

Among those adolescents who have ever vaped cannabis.