Table 1.

Trial characteristics

CTN Trial #	Years Conducted	Target population	Diagnostic Instrument	Trial Sample	Opiate- Primary Subsample	OP Subsample Characteristics
						Age Mean (SD)	Male %	White race %	Black race %	Other race %
0001	2001–02	Enrollees for inpatient opiate detoxification services	DSM-IV Checklist	138	130 (94%)	36.3 (9.8)	60.8	56.2	16.9	26.9
0002	2001–02	Enrollees for outpatient opiate detoxification services	DSM-IV Checklist	277	272 (98%)	38.7 (10.3)	71.6	37.3	35.8	26.9
0004	2001–04	Seekers of substance abuse treatment services	SDSS	392	40 (10%)	36.7 (10.3)	60.0	72.5	12.5	15.0
0006	2001–03	Seekers of substance abuse treatment services (drug-free clinics)	DSM-IV Checklist	469	13 (3%)	34.6 (8.8)	46.2	53.9	23.1	23.1
0007	2001–03	Seekers of substance abuse treatment services (methadone clinics)	DSM-IV Checklist	454	214 (47%)	42.6 (8.5)	54.7	22.3	62.6	15.2
0009	2003–04	Seekers of smoking cessation services at substance abuse treatment clinics	DSM-IV Checklist	366	177 (48%)	44.5 (9.6)	58.2	29.6	30.1	40.3
0013	2003–06	Pregnant seekers of substance abuse treatment services	DSM-IV Interview	232	27 (12%)	26.1 (4.3)	0	29.6	7.4	63.0
0017	2004–06	IV drug users enrolled in drug detoxification services	CIDI	679	108 (16%)	37.8 (9.4)	73.1	70.4	4.6	25.0
0018	2004–05	Male seekers of substance abuse treatment services	CIDI	990	173 (17%)	42.9 (10.0)	100	52.3	26.2	21.5
0019	2004–05	Female seekers of substance abuse treatment services	CIDI	814	242 (30%)	41.6 (8.9)	0	50.0	21.9	28.1
Aggregat e				4,811	1,396 (29%)	40.5 (10.0)	55.6	43.5	30.0	27.5

Notes:

Trials selected by virtue of their enrollment of a treatment-seeking population and pre-treatment administration of both a DSM-IV diagnostic instrument and ASI-Lite. ‘Other race’ subsumes racial categories of Spanish/Latino, ‘Other,’ and multi-racial identification.

Additional information concerning individual trials is available at: http://ctndisseminationlibrary.org