Table 2.

Treatment outcomes of participants who did and did not complete two or more employment activities.

Treatment Outcomes	< 2 Employment activities	≥ 2 Employment activities	Test value (df)	p value
ASI-Employment change scores	0.04 ± 0.21	0.10 ± 0.23	F (1, 132) = 3.67	.05
Total Quality of Life change scores	0.03 + 1.93	−0.63 + 1.81	F (1, 132) = 13.95	.001
Treatment retention (in weeks)	6.6 ± 3.9	9.5 ± 2.9	F (1, 169) = 3.88	.05
Longest duration of abstinence (in weeks)	5.1 ± 4.4	8.7 ± 4.1	F (1, 169) = 10.46	.001

Values represent means and standard deviations. Statistical tests control for total number of activities completed, gender, age, and baseline Addiction Severity Index drug and medical scores.