Table 2.

Alcohol-positive/Alcohol-severity groups characteristics at baseline

	ALC+ Only (n = 44)	AUDIT+ Only (n = 44)	ALC+/AUDIT+ (n = 84)
	M(SD) or n(%)	M(SD) or n(%)	M(SD) or n(%)	Statistic
Male	23 (52.3%)	27 (61.4%)	67 (72.6%)	χ²(2) = 5.48
Age	20.5 (2.0)	20.6 (1.7)	20.4 (1.8)	F(2,169) = 0.39
BAC in ED	.086 (.077)^a	.000^b	.124 (.077)^c	F(2,151) = 39.14^***
AUDIT Total	4.4 (1.6)^a	12.1 (3.9)^b	14.0 (6.1)^c	F(2,169) = 60.23^***
Attribution about alcohol in the medical event	3.1 (2.5)^a	1.1 (0.6)^b	4.0 (2.4)^c	F(2,169) = 26.12^***
Aversiveness of the medical event	4.8 (1.7)	4.0 (1.5)	4.5 (1.7)	F(2,169) = 2.65
Perceived seriousness of the medical event	3.2 (1.7)	3.0 (1.6)	3.0 (1.8)	F(2,115) = 0.20
Readiness to change alcohol use	5.5 (2.3)	4.9 (2.6)	5.9 (2.8)	F(2,115) = 1.39
No. drinking days, past month	4.1 (2.6)^a	9.4 (6.7)^b	9.3 (7.1)^b	F(2,169) = 11.76^***
RAPI Total	8.4 (6.3)^a	21.9 (15.4)^b	19.3 (15.8)^b	F(2,169) = 12.39^***
Alcohol-related injury	34 (77.3%)^a,b	28 (63.6%)^a	74 (88.1%)^b	χ²(2) = 10.55^**

Note. ALC = Alcohol; reflects participants who were alcohol-positive by self-report or biochemical test. AUDIT = Alcohol Use Disorders Identification Test; reflects participants who scored 8 or higher on the AUDIT. BAC = Blood Alcohol Concentration. ED = Emergency Department. RAPI = Rutgers Alcohol Problems Index. Frequency of drinking is presented for descriptive purposes; significance values of other alcohol consumption variables and the standardized composite were identical. Different superscripts indicate groups differ significantly.

^**

p < .01.

^***

p < .001.