Table 1:

Baseline characteristics of sample, by baseline use of nonprescribed opioids

	Pretreatment nonprescribed opioid use N=71		No nonprescribed opioid use pretreatment N=49		Total N=120
Categorical variables, number (%)	n	%		%		%	df	F or X2	p-value
Assigned to galantamine	31	44	24	49	55	46	1	.33	.57
Female	19	27	21	43	40	33	1	3.38	.07
Race and ethnicity
Caucasian	35	49	27	55	62	52	3	1.54	.67
African-American	14	20	11	22	25	21
Hispanic	21	30	11	22	32	27
Multiracial	1	1	0		1	1
Completed high school	53	75	33	67	86	72	1	.76	.38
Unemployed	54	76	33	67	87	73	1	1.10	.29
On public assistance	51	72	34	69	85	71	1	.08	.77
Major depression -Lifetimea	5	7	5	10	10	8	1	.38	.54
Anxiety disorder -Lifetime	10	14	5	10	15	13	1	.40	.53
Antisocial personality disorder	9	13	7	14	16	13	1	.07	.80
Alcohol use disorder-lifetime	38	54	28	57	66	55	1	.15	.70
Post traumatic stress disorder	2	3	1	2	3	3	1	.07	.79
Continuous variables, mean and SD	M	SD	M	SD	M	SD
Days paid for working, past 28	8.41	9.89	6.18	9.49	7.50	9.75	1, 118	1.52	.22
Age	38.41	9.27	38.29	9.74	38.36	9.43	1, 118	.01	.94
Days marijuana use, past 28	3.56	7.11	2.84	7.70	3.27	7.34	1, 118	.28	.60
Days cocaine use, past 28	14.00	8.30	14.33	8.44	14.13	8.32	1, 118	.04	.83
Days cigarette use, past 28	26.27	6.53	26.53	5.98	26.38	6.29	1, 118	.05	.82
Days alcohol use, past 28	3.30	6.46	1.59	3.59	2.60	5.52	1, 118	2.81	.10
Days benzodiazepine use, past 28	.45	1.39	.20	.71	.35	1.16	1, 118	1.30	.26
Years of regular cocaine use	9.87	8.75	9.69	8.36	9.80	8.56	1, 118	.01	.91
Years of regular opiate use	10.77	7.57	8.57	8.09	9.88	7.83	1, 118	2.32	.13
Lifetime number of arrests	7.86	10.45	6.51	11.30	7.31	10.78	1, 118	.45	.50
Prior Treatment Episodes:
Number of outpatient episodes	2.87	3.52	2.35	2.50	2.66	3.14	1, 118	.81	.37
Number of inpatient episodes	3.96	6.10	1.78	2.49	3.07	5.06	1, 118	5.60	.02
Estimated IQ from Shipley	100.71	11.62	100.31	11.84	100.55	11.67	1, 118	.03	.85
Baseline methadone dose, mg/day	68.10	29.00	73.65	28.01	70.45	28.60	1, 118	1.07	.30
Posttreatment methadone dose, mg. day	67.77	31.17	71.04	34.15	69.11	32.32	1, 115	.29	.59

^aAll psychiatric diagnoses from SCID interviews