Table 3.

Adjusted prevalence ratios of other substance use by binge drinking frequency^a

Substance-specific use	1 day (n=14,141)	2–3 days (n=13,838)		4–5 days (n=6,587)		≥6 days (n=7,448)
		aPRb (95% CI)	P-value	aPRb (95% CI)	P-value	aPRb (95% CI)	P-value
Overallc	Ref.	1.3 (1.2, 1.3)	<0.0001	1.5 (1.4, 1.6)	<0.0001	1.9 (1.8, 2.0)	<0.0001
Marijuanad	Ref.	1.3 (1.2, 1.4)	<0.0001	1.5 (1.4, 1.6)	<0.0001	1.9 (1.8, 2.0)	<0.0001
Misuse of prescription pain relieverse	Ref.	1.4 (1.2, 1.7)	<0.01	1.7 (1.3, 2.2)	<0.01	2.7 (2.1, 3.4)	<0.0001
Heroinf	Ref.	1.4 (0.7, 2.8)	0.30	1.1 (0.5, 2.4)	0.83	1.8 (0.9, 3.8)	0.10
Misuse of prescription tranquilizers or sedativesg,h	Ref.	1.3 (1.0, 1.8)	0.09	1.8 (1.3, 2.4)	<0.01	2.6 (1.9, 3.6)	<0.0001
Stimulantsi	Ref.	1.5 (1.3, 1.8)	<0.0001	2.4 (2.0, 2.9)	<0.0001	3.8 (3.1, 4.6)	<0.0001
Cocaine or crackj	Ref.	1.5 (1.1, 2.1)	0.02	2.7 (2.0, 3.7)	<0.0001	4.9 (3.6, 6.5)	<0.0001
Other stimulantsh,k	Ref.	1.5 (1.2, 1.9)	<0.01	2.3 (1.9, 2.9)	<0.0001	3.4 (2.7, 4.4)	<0.0001
Hallucinogensh,l	Ref.	1.2 (0.9, 1.6)	0.13	2.0 (1.5, 2.6)	<0.0001	2.7 (2.0, 3.7)	<0.0001
Concurrent substance use among people who reported binge drinking and prescription drug misuse m
Prescription pain reliever misuse while drinking	Ref.	1.6 (1.1, 2.3)	<0.01	1.7 (1.1, 2.5)	0.02	2.5 (1.8, 3.5)	<0.0001

aPR: Adjusted prevalence ratio

Boldface indicates statistical significance (p<0.05).

^aNumber of days consuming ≥5 drinks (males) or ≥4 drinks (females), per occasion, in the past 30 days.

^baPRs controlled for sex, age group, race or ethnicity, total annual family income, and cigarette smoking in the past 30 days.

^cIncludes the use of ≥1 substance other than alcohol or tobacco, including the use of marijuana, misuse of prescription pain relievers, heroin, misuse of prescription tranquilizers (including benzodiazepines) or sedatives, stimulants (including methamphetamine, cocaine, ecstasy, misuse of prescription stimulants), or hallucinogens.

^dUsed marijuana or hashish in the past 30 days.

^eUsed a prescription pain reliever without a prescription of your own; used in greater amounts, more often, or longer than you were told to take it; used in any other way a doctor did not direct you to use it ≥1 time in the past 30 days.

^fUsed heroin in the past 30 days.

^gUsed a prescription tranquilizer (including benzodiazepines) or sedative without a prescription of your own; used in greater amounts, more often, or longer than you were told to take it; used in any other way a doctor did not direct you to use it ≥1 time in the past 30 days.

^hAge was collapsed from five age groups to two age groups (<35 and ≥35 years) to remove collinearity.

ⁱUsed a stimulant (including methamphetamine, ecstasy, or cocaine or crack), or misused a prescription stimulant in the past 30 days.

^jUsed cocaine, including crack or powder, in the past 30 days.

^kUsed methamphetamine in the past 30 days, used ecstasy in the past 30 days, or misused a prescription stimulant in the past 30 days.

^lHallucinogen use in the past 30 days.

^mData are presented among people who reported prescription pain reliever misuse while drinking alcohol or within a couple of hours of drinking in the past 30 days. Data among people who reported other prescription drug misuse (i.e., tranquilizer, sedative, or stimulant misuse) while drinking alcohol or within a couple of hours of drinking were suppressed due to potentially unreliable estimates.