Table 3.

Use of other drugs in the last 12 months of a sample of Brazilian university students according to their use of e-cigarettes in the last 12 months. Brazil, 2021 (n=3083)

	e-Cigarettes				χ2 test
	Non-users		Users		OR	p
	n	%	n	%
Cigarette						***
No	2,318	85.7	150	39.8	1
Yes	388	14.3	227	60.2	9.04 (7.16–11.40)*
Hookah						***
No	2,486	91.9	175	46.4	1
Yes	220	8.1	202	53.6	13.04 (10.21–16.66)*
Any smoking product						***
No	2,167	90.8	83	22.0	1
Yes	220	9.2	294	78.0	34.89 (26.4–46.2)*
Marijuana						***
No	2,294	84.8	145	38.5	1
Yes	412	15.2	232	61.5	8.91 (7.06–11.24)*
Cocaine or crack						***
No	2,663	98.4	355	94.2	1
Yes	43	1.6	22	5.8	3.84 (2.27–6.50)*
Amphetamine						***
No	2,646	97.8	342	90.7	1
Yes	60	2.2	35	9.3	4.51 (2.93–6.95)*
Benzodiazepines						***
No	2,563	94.7	335	88.9	1
Yes	143	5.3	42	11.1	2.25 (1.56–3.29)*
Hallucinogens						***
No	2,643	97.7	316	83.8	1
Yes	63	2.3	61	16.2	8.10 (5.59–11.7)*
Any illicit drug use						***
No	2,102	77.7	127	33.7	1
Yes	604	22.3	250	66.3	6.85 (5.43–8.64)

Note: N, number of participants; %, frequency; p, significance level; OR, odds ratio; Effect, the effect size of chi-squared was calculated using Cramer’s V; *** p <0.001