Table 2. Results of Between-Groups Analysis (N=112).

Outcome measures	F-value	Significance (p-value)
Cocaine use (probability of +UDS)
Initial effect: weeks 0–1	F(1,113)=1.1	0.30
By week effect: weeks 1–10	F(1,80)=0.0	0.99
Percent days used cocaine
Initial effect: weeks 0–1	F(1,147)=2.5	0.12
By week effect: weeks 1–10	F(1,96)=1.1	0.31
Dollar amount spent on cocaine
Initial effect: weeks 0–1	F(1,93)=11.2	0.01
By week effect: weeks 1–10	F(1,62)=3.9	0.05
Cocaine craving questionnaire
Initial effect: weeks 0–1	F(1,100)=1.3	0.26
By week effect: weeks 1–10	F(1,83)=0.4	0.53
HRSD (depression scale rating)
Initial effect: weeks 0–1	F(1,104)=0.6	0.44
BY week effect: weeks 1–10	F(1,79)=0.3	0.57
QIDS-SR (self-rated depression)
Initial effect: weeks 0–1	t(106)=0.0	0.97
By week effect: weeks 1–10	t(77)=0.1	0.89
YMRS (mania)
Initial effect: weeks 0–1	F(1,174)=0.3	0.56
By week effect: weeks 1–10	F(1,190)=0.5	0.47
PRD-III score (repeated measures)
Initial effect: weeks 0–1	F(1,93)=0.5	0.49
By week effect: weeks 1–10	F(1,71)=1.3	0.26