Table 3.

Adjusted odds ratios (aORs) of P30D cigarette smoking at 12-month follow-up waves among adolescents (12–17 years of age) who were never cigarette smokers at baseline waves.

	Model 1	Model 2
	No Interaction	With Interaction
	aOR (95% CI)	aOR (95% CI)
P30D e-cigarette use
Yes	3.90 (2.51–6.08)	1.93 (0.79–4.71)
No	Ref.	Ref.
Sex
Male	1.24 (1.03–1.49)	1.19 (0.98–1.43)
Female	Ref.	Ref.
P30D e-cigarette use # Sex
Yes # Male		3.18 (2.21–4.57)
No # Female		Ref.
Age group
12–14	Ref.	Ref.
15–17	1.80 (1.44–2.26)	1.81 (1.44–2.26)
Race/ethnicity
Non-Hispanic White	Ref.	Ref.
Non-Hispanic Black	0.46 (0.30–0.70)	0.46 (0.30–0.70)
Non-Hispanic Other	0.66 (0.43–1.01)	0.66 (0.43–1.01)
Hispanic	0.66 (0.50–0.89)	0.66 (0.50–0.89)
Parental education
Less than high school	Ref.	Ref.
High school graduate	0.92 (0.66–1.29)	0.92 (0.65–1.29)
Some college or associate degree	0.76 (0.55–1.05)	0.75 (0.54–1.04)
Bachelor’s degree or above	0.50 (0.35–0.71)	0.50 (0.35–0.71)
P30D use of other tobacco products 1
Yes	3.22 (1.23–8.46)	3.45 (1.36–8.70)
No	Ref.	Ref.
Internalizing mental health problems
Low	Ref.	Ref.
Moderate	1.33 (1.04–2.58)	1.33 (1.05–1.69)
High	1.90 (1.40–2.58)	1.93 (1.42–2.63)
Externalizing mental health problems
Low	Ref.	Ref.
Moderate	1.40 (1.01–1.95)	1.41 (1.01–1.97)
High	2.11 (1.55–2.88)	2.09 (1.54–2.85)

¹ Other tobacco included cigars (traditional cigars, cigarillos, or filtered cigars), hookah, and smokeless tobacco (snus pouches, loose snus, moist snuff, dip, spit, or chewing tobacco). Ref.: reference group.