Table 2.

Prevalence of adolescent substance use, 2019 BBSS (N=6167)

Variable		n	%	95% Cl
Past 30-day substance use	Alcohol	930	15.1	14.2-16.0
	Cigarette	384	6.2	5.6-6.8
	E-cigarette	416	6.7	6.1-7.4
	Cannabis	122	2.0	1.6-2.4
E-cigarette poly-use status	No e-cigarette use	5751	93.3	93.0-93.9
	E-cigarette use only	116	1.9	1.6-2.3
	E-cigarettes + other substance(s)	300	4.9	4.3-5.4
Substance combinations among e-cigarette poly-users (n=300)	E-cigarettes + alcohol	101	33.7	28.3-39.3
	E-cigarettes + cannabis	3	1.0	0.8-1.3
	E-cigarettes + tobacco	55	18.3	14.1-23.2
	E-cigarettes + alcohol + tobacco	105	35.0	29.6-40.7
	E-cigarettes + alcohol + cannabis	5	1.7	0.5-3.8
	E-cigarettes + cannabis + tobacco	14	4.7	2.6-7.7
	E-cigarettes + alcohol + cannabis + tobacco	17	5.7	3.3-8.9