Table 1.

Baseline Characteristics

Condition	NTX & MBSCT (n = 51)		NTX (n = 51)		MBSCT (n = 50)		PBO (n = 48)		Overall Sample (N = 200)
Variable	M or %	SD	M or %	SD	M or %	SD	M or %	SD	M or %	SD
Demographics
Age	38.4	(10.2)	38.5	(11.3)	42.2	(10.8)	42.4	(11.4)	40.3	(11.1)
Race/Ethnicity
White	73		78		59		85		74
African-American	8		0		26		4		10
Asian	4		4		0		2		3
Hispanic/Latino	16		18		12		8		13
Education
High School/GED or less	0		8		6		8		6
Some college/Associates	16		22		19		13		17
Bachelor's degree	41		28		14		25		27
Some/Grad/Prof	43		42		61		54		50
Employed (n = 187)
Employed	70		86		74		72		76
Unemployed/looking work	13		8		8		12		10
Not in labor force/not look	17		6		18		16		14
Drinking Severity
Mean sum std. drinks/week	37.8	(15.0)	39.7	(19.8)	47.8	(35.2)	47.2	(26.4)	43.1	(25.4)
Mean drinks per drinking day	7.8	(3.0)	7.8	(3.3)	8.7	(5.1)	9.0	(6.1)	8.3	(4.5)
Mean number of heavy drinking days/week	3.1	(1.9)	3.2	(1.9)	3.7	(2.0)	3.7	(2.3)	3.4	(2.0)
Short Inventory of Problems score	16.5	(7.6)	17.6	(8.0)	14.6	(7.2)	16.1	(7.3)	16.2	(7.6)
Alcohol Dependence Scale score	14.4	(5.6)	13.7	(4.8)	12.7	(5.5)	14.3	(5.8)	13.8	(5.4)
Number of alcohol dependence criteria met	5.2	(1.5)	5.0	(1.5)	5.1	(1.4)	4.7	(1.9)	5.0	(1.6)
Any drug usea	77		77		52		63		67
Ever received formal treatment for substance use problem	11		19		14		13		14
Beck Depression Inventory-II Score	19.6	(9.5)	19.3	(8.8)	17.3	(7.8)	18.1	(8.5)	18.6	(8.6)
State STAI Scoreb	40.8	(12.0)	41.2	(11.0)	39.2	(9.8)	38.9	(11.3)	40.0	(11.0)

Note: NTX + MBSCT = naltrexone and Modified Behavioral Self Control Therapy; NTX = naltrexone alone; MBSCT = Modified Behavioral Self Control Therapy alone; PBO = placebo.

^aχ²(3, N = 200) = 9.67, p = .02.

^bSTAI=State-Trait Spielberger Anxiety Inventory