. Author manuscript; available in PMC: 2012 Dec 1.

Published in final edited form as: J Subst Abuse Treat. 2011 Jul 7;41(4):354–362. doi: 10.1016/j.jsat.2011.05.003

Table 1.

Characteristics of the study sample

Study Sample	Drug-Using Patients^a	Drug-Abstinent Patients^b	Controls^c	p ≤ .05^*
N	30	30	26
Age (SE)	43.32 (1.43)	46.63 (0.91)	40.90 (1.65)	N/S
Male (%)	53.33	56.67	40.00	N/S
White (%)	93.10	77.40	75.00	N/S
Years of Education (SD)	12.16 (0.31)	11.2 (0.35)	15.35 (0.51)	ac, bc
Full-Time Employed (%)	33.33	33.33	95.00	ac, bc
Unemployed (%)	60.00	66.67	0.00	ac, bc
Median Monthly Income (IQR)	$750 (150 –1410)	$1550 (711 – 2425)	2000 (1400 – 2500)
On Parole (%)	3.33	0.00	0.00	N/S
On Probation (%)	16.67	6.67	0.00	ab, ac
Life DWI Arrests (SD)	1.43 (0.52)	0.83 (0.19)	0.05 (0.05)	ab, ac
All Past-Year Arrests (SD)	0.66 (0.18)	0.03 (0.03)	0.00	ab, ac
Cigarettes per Day (SD)	18.93 (2.17)	16.5 (2.37)	1.4 (1.01)	ac, bc
Current Recreational Drug Use (%)	53.33	0	0.00	ab, ac
Past Alcohol Problems (%)	56.67	50.00	0.00	ac, bc

Differences between groups are indicated by the letters a, b, and c in the last column, corresponding to group columns.