Table 3 –

Covariates associated with planned and unplanned use of any illegal drugs the night of the survey.

	Any Illegal Drug Use			Ecstasy Use			Marijuana Use
	No Use (64.6%) Weighted %	Planned Use (14.4%) Weighted %	Unplanned Use (21.0%) Weighted %	No Use (86.1%) Weighted %	Planned Use (7.4%) Weighted %	Unplanned Use (6.5%) Weighted %	No Use (86.3%) Weighted %	Planned Use (3.8%) Weighted %	Unplanned Use (9.9%) Weighted %
Age
18–24	62.3	16.1	21.6	86.3	7.4	6.3	78.0*	6.9	15.1
25–40	66.5	13.0	20.5	85.9	7.5	6.6	93.0	1.3	5.7
Sex
Male	51.5	23.1	25.4	75.1*	16.4	8.5	86.9	4.0	9.1
Female	71.9	9.6	18.6	92.1	2.5	5.4	86.0	3.7	10.3
Race/Ethnicity
Non-White	71.2	12.4	16.3	86.4	8.5	5.1	89.8	0.8	9.4
White	58.6	16.2	25.3	85.8	6.5	7.7	83.2	6.4	10.4
Education
< College degree	64.9	16.1	19.0	89.2	5.5	5.3	88.0**	7.1	4.9
College degree
Sexual Orientation
Heterosexual	67.7	13.0	19.4	87.5	6.0	6.5	89.6*	4.2	6.2
Non-heterosexual	55.3	18.7	25.9	81.8	11.7	6.4	77.2	2.7	20.1
Venue Type
Nightclub	66.0**	6.5	27.5	89.4*	2.1	8.5	88.7	0.9	10.5
Festival	62.9	24.0	13.1	82.1	13.9	4.0	83.5	7.3	9.2
Past-Year Marijuana Use
No	76.0	9.4	14.6	80.3	7.9	11.7	93.4	0.0	6.6
Yes	58.1	17.2	24.7	89.5	7.1	3.4	81.8	6.2	12.0
Past-Year Ecstasy Use
No	74.4***	9.0	16.5	90.7*	4.5	4.7	90.8*	2.9	6.3
Yes	29.1	33.7	37.1	67.5	19.0	13.5	70.2	7.1	22.8

Note. Planned use indicates use that was reportedly planned. Comparisons were computed using chi-square.

^*p < .05,

^**p < .01,

^***p < .001