Table 3. Oddsratios of substance use among participants with cumulative childhood trauma.

Cumulative childhood trauma experiences	Frequency			Any substance use vs. no substance use				Smoker vs. non-smoker				E-cigarette use vs. non-e-cigarette use				Drinker vs. non-drinker
	N	%		aOR	(95% CI)	P		aOR	(95% CI)	P		aOR	(95% CI)	P		aOR	(95% CI)	P
Abbreviation: aOR=adjusted odds ratio; CI=confidence interval. * Adjusted for age, gender, ethnicity group, place of residence, and per capita disposable income.
Never	38,534	40.08		1				1				1				1
One	24,559	25.54		1.20	1.16–1.24	<0.001		1.15	1.09–1.21	<0.001		1.15	1.06–1.25	0.001		1.20	1.16–1.24	<0.001
Two	20,730	21.56		1.26	1.21–1.31	<0.001		1.25	1.19–1.32	<0.001		1.32	1.22–1.43	<0.001		1.23	1.19–1.27	<0.001
Three	7,294	7.59		1.55	1.46–1.64	<0.001		1.52	1.41–1.64	<0.001		1.82	1.64–2.02	<0.001		1.50	1.42–1.58	<0.001
Four	3,080	3.20		1.71	1.58–1.86	<0.001		1.60	1.44–1.78	<0.001		1.90	1.64–2.20	<0.001		1.69	1.56–1.83	<0.001
Five	1,954	2.03		2.16	1.94–2.41	<0.001		1.82	1.62–2.05	<0.001		2.48	2.12–2.89	<0.001		2.03	1.82–2.26	<0.001