. Author manuscript; available in PMC: 2018 May 1.

Published in final edited form as: Psychol Addict Behav. 2017 Feb 9;31(3):307–314. doi: 10.1037/adb0000260

Table 2.

Number and Percentage of Occasions Additional Substances were Used with Alcohol

	Alcohol Only	Alcohol + 1 Substance		Alcohol + 2 Substances		Alcohol + 3 or more

Number of Occasions	2366 (72.1%)	701 (21.4%)		175 (5.3%)		40 (1.2%)
Breakdown by Substance(s)
		+N	294 (41.9%)	+N+MJ	116 (66.3%)	+N+MJ+ADHD	14 (35%)
		+MJ	360 (51.4%)	+N+ADHD	16 (9.1%)	+N+MJ+C	6 (15%)
		+ADHD	28 (4.0%)	+N+C	11 (6.3%)	+N+MJ+S	3 (7.5%)
		+C	11 (1.6%)	+MJ+ADHD	10 (5.7%)	+N+MJ+C+ADHD	3 (7.5%)
				+MJ+C	10 (5.7%)

Note. N= Nicotine. MJ = Marijuana. C = Cocaine. S = Sedatives. ADHD = ADHD Prescription medication (e.g. Adderall)