Table 2.

Subject Characteristics for Studies Designed to Evaluate Computer-Based Interventions for Drug Use

Author (year)	Population	N	Age (mean± SD, years)	Sex (% male)	Race/ethnicity	Drug
Barber (1990)	Inmates in drug treatment units in Melbourne, Australia	30	NPa	NPa (male and female)	NPa	Opioids
Bickel et al. (2008)	Substance abuse treatment seeking, already in substance abuse treatment	135	28.6±8.3	56%	96% white	Opioids
Carroll et al. (2008, 2009)	Outpatient substance abuse treatment seeking	77	41.6±10.2	57	34% white	69% cocaine
					46% AAb	16% opioids
					12% Hispanic	18% alcohol
					6% Native American	7% cannabis
Chopra et al. (2009)	Outpatient substance abuse treatment seeking	127	32± 11.1	58	98% white	Opioids
Grohman & Fals-Stewart (2003)	Residential substance abuse treatment seeking	120	32± 5.2	71	52% white	65% cocaine
					32% AAb	60% alcohol
					13% Hispanic	29% opiate
					3% other	17% cannabis
						23% other
Grohman et al. (2006)	Veterans recently enrolled in treatment	19	47 ± 5.2	89	39% white	74% cannabis
					58% AAb	68% alcohol
					5% Hispanic	58% cocaine
						58% other
Hall & Huber (2000)	Already in substance abuse treatment	909	32 ± 1.4	77	83% white	85% alcohol
						59% cannabis
Kay-Lambkin et al. (2009)	Outpatient substance abuse treatment seeking	97	35 (range 18–61)	46	93% white	Alcohol or cannabis
Marsch & Bickel (2004)	Currently in substance abuse treatment	30	36 ± 1.37	63	90% white	IVc opioid
					3% AAb
					7% Hispanic
Ondersma et al. (2005)	Postpartum women recruited from hospital’s obstetrics department	30	23 ± 5.6	0	97% AAb	37% cannabis
						27% cocaine, amphetamines, opiates, hallucinogens or inhalants
Ondersma et al. (2007)	Postpartum women recruited from hospital’s obstetrics department	107	25 ± 5.6	0	97% AAb	Cannabis and other
Ruggiero et al. (2006)	Probability sample of adults in New York City following September 11th attacks	285	42 ± 13.6	47	73% white	Any illicit drug
					9% Asian
					6% AAb
					9% Hispanic
					3% other

^aNot provided

^bAfrican American

^cIntravenous