Table 2.

Results of logistic regression models of heated tobacco products (HTPs) use among US adolescents (N=19018)

Characteristics	Awareness of HTPs (n=2390)		Ever use of HTPs (n=398)		Current use of HTPs (n=291)
	AOR (95% CI)	p	AOR (95% CI)	p	AOR (95% CI)	p
Current tobacco usea
None (0)	Ref.		Ref.		Ref.
Single (1 product)	0.76 (0.59–0.98)	0.033	2.52 (1.19–5.33)	0.017	10.84 (6.72–17.49)	<0.001
Dual/poly (≥2 products)	0.96 (0.71–1.28)	0.769	4.94 (2.56–9.54)	<0.001	31.96 (17.79–57.43)	<0.001
Grade level
Middle school	Ref.		Ref.		Ref.
High school	0.77 (0.63–0.95)	0.015	1.11 (0.59–2.11)	0.737	0.54 (0.39–0.74)	<0.001
Sex
Female	Ref.		Ref.		Ref.
Male	1.13 (0.96–1.34)	0.151	1.81 (1.06–3.10)	0.031	0.94 (0.64–1.39)	0.759
Race/Ethnicity
Non-Hispanic White	Ref.		Ref.		Ref.
Non-Hispanic Black	0.95 (0.82–1.11)	0.518	0.91 (0.54–1.54)	0.728	1.42 (0.90–2.23)	0.127
Hispanic	1.00 (0.85–1.17)	0.993	1.31 (0.91–1.87)	0.140	1.62 (1.10–2.37)	0.015
Non-Hispanic Other	1.00 (0.80–1.27)	0.968	0.82 (0.36–1.86)	0.636	1.51 (0.60–3.79)	0.380
Familial heated tobacco product useb
No	Ref.		Ref.		Ref.
Yes	4.78 (3.20–7.13)	<0.001	9.78 (5.65–16.94)	<0.001	6.07 (3.66–10.07)	<0.001
Past 30 days menthol cigarette usec
Nod	Ref.		Ref.		Ref.
Yes	1.77 (1.23–2.53)	0.002	2.50 (1.66–3.76)	<0.001	2.50 (1.63–3.85)	<0.001
Past 30 days flavored, noncigarette tobacco product usee
No	Ref.		Ref.		Ref.
Yesf	1.44 (1.16–1.80)	0.002	1.61 (1.07–2.44)	0.024	1.34 (0.88–2.03)	0.169

AOR: adjusted odds ratio. CI: confidence interval. Boldface indicates statistical significance (p<0.05; 2-sided).

^aIncludes current use of cigarettes, e-cigarettes, cigars, smokeless tobacco (e.g. chewing tobacco, snuff, or dip), hookah, roll-your-own cigarettes, pipe, snus, dissolvable tobacco products, and bidis.

^bAssessed with the question: ‘Does anyone who lives with you now […] use heated tobacco products?’.

^cAssessed with the question: ‘Menthol cigarettes are cigarettes that taste like mint. During the past 30 days, were the cigarettes that you usually smoked menthol?’.

^dIncludes ‘no’, ‘not sure’ and ‘not past 30 days cigarette smokers’.

^eAssessed with 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)’.

^fIncludes ‘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’; not including heated tobacco products.