Table 3.

Regression (GEE) estimates for abstinence (i.e. three consecutive weeks of no cannabis use) during the medication trial

Effect	β estimate (SE)	p-value
Intercept	−3.27 (0.78)	<0.001
Treatment*
Bupropion	−0.31 (0.53)	0.567
Nefazodone	−0.60 (0.54)	0.272
Week**	0.22 (0.07)	0.001
Baseline use***	0.75 (0.41)	0.067

^*Treatment is bupropion or nefazodone relative to placebo.

^**Week corresponds to medication weeks (3–10).

^***Baseline use is dichotomized into high use vs low use, defined as 30 days or less than 30 days of cannabis use in the month prior to lead-in.