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. Author manuscript; available in PMC: 2023 Aug 1.
Published in final edited form as: Addict Behav. 2022 Mar 25;131:107316. doi: 10.1016/j.addbeh.2022.107316

Table 1.

Descriptive statistics for study variables among baseline never cannabis users.

Weighted % 95% CI Unweighted
n

Wave 4.5 outcome variables
Past-12-month cannabis vaping
 Yes 5.3 4.8 – 5.7 523
 No 94.7 94.3 – 95.2 9,153
Past-12-month blunting
 Yes 3.2 2.8 – 3.6 320
 No 96.8 96.4 – 97.2 9,355
Past-12-month smoking cannabis with Hookah
 Yes 0.6 0.4 – 0.8 57
 No 99.4 99.2 – 99.6 9,626
Past-12-month any cannabis use
 Yes 8.2 7.6 – 8.8 810
 No 91.8 91.2 – 92.4 8,859
Past-30-day any cannabis use
 Yes 3.3 3.0 – 3.7 328
 No 96.7 96.3 – 97.0 9,363
Wave 4 baseline variables
Past-30-day e-cigarette use
 Yes 1.2 1.0 – 1.4 110
 No 98.8 98.6 – 99.0 9,551
Past-30-day use of other tobacco*
 Yes 1.0 0.8 – 1.2 91
 No 99.0 98.8 – 99.2 9,495
Past-30-day alcohol use
 Yes 4.7 4.2 – 5.2 440
 No 95.3 94.8 – 95.8 9,245
Past-30-day misuse of prescription drugs
 Yes 2.8 2.5 – 3.1 284
 No 97.2 96.9 – 97.5 9,408
Past-30-day use of other illicit drugs
 Yes 0.1 0.0 – 0.2 7
 No 99.9 99.8 – 100.0 9,684
Perception of harmfulness of e-cigarette
 No harm 1.6 1.3 – 1.9 151
 Little harm 9.2 8.6 – 9.9 886
 Some harm 29.9 29.0 – 30.9 2,874
 A lot of harm 59.3 58.2 – 60.3 5,709
Age in years
 12 22.8 21.9 – 23.7 2,019
 13 22.0 21.1 – 22.9 2,191
 14 20.8 19.9 – 21.6 2,109
 15 18.3 17.5 – 19.1 1,799
 16 16.2 15.4 – 17.0 1,574
Sex
 Male 50.9 49.9 – 52.0 5,030
 Female 49.1 48.0 – 50.1 4,662
Race/ethnicity
 Non-Hispanic White 53.2 52.2 – 54.3 4,571
 Non-Hispanic Black 13.0 12.3 – 13.7 1,277
 Hispanic 23.4 22.6 – 24.2 2,896
 Non-Hispanic Other 10.4 9.7 – 11.1 948
Parental education
 Less than high school 15.1 14.4 – 15.8 1,732
 High school graduate 16.7 16.0 – 17.6 1,710
 Some college or associate degree 30.5 29.5 – 31.4 2,979
 Bachelor’s degree or above 37.7 36.7 – 38.8 3,193
Severity of internalizing mental health problems
 Low 51.4 50.3 – 52.5 4,975
 Moderate 28.6 27.6 – 29.5 2,676
 High 20.1 19.2 – 20.9 1,943
Severity of externalizing mental health problems
 Low 40.9 39.8 – 42.0 3,998
 Moderate 29.7 28.7 – 30.7 2,749
 High 29.4 28.4 – 30.4 2,786
State-level recreational cannabis legalization
 Yes 20.1 19.2 – 20.9 2,038
 No 79.9 79.1 – 80.8 7,654
*

Other tobacco included cigarette, cigar/cigarillo, pipe, hookah, smokeless tobacco (including snus and dissolvable products), bidi, and kretek.