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. 2013 Feb 15;15(2):e26. doi: 10.2196/jmir.2256

Table 2.

Cannabis-related variables across assessments (N=225; imputation is not used for the Abstinence variable).

Variable	Intervention	Control	Intervention	Control	Intervention	Control
	Baseline	Baseline	6 weeks	6 weeks	3 months	3 months
	(n=111)	(n=119)	(n=76)	(n=73)	(n=64)	(n=58)
Frequency (days past month)	21.33 (8.24)	20.76 (8.68)	12.90 (8.47)^a	14.87 (8.88)^b	12.05 (8.99)^a	14.11 (8.79)^b
Quantity (SCUs^c past month)	79.28 (72.68)	70.66 (60.96)	39.78 (44.97)^a	46.16 (49.31)^b	36.65 (44.85)^a	39.25 (39.21)^b
SDS^d	8.97 (3.61)	8.78 (3.61)	7.31 (3.22)^a	7.44 (3.56)^b	5.70 (3.35)^a	6.82 (3.31)^b
GAIN-dependence	4.47 (1.57)	4.40 (1.65)	3.09 (1.69)^a	3.21 (1.60)^b	2.53 (1.67)^a	3.10 (1.67)^b
GAIN-abuse	2.61 (1.41)	2.43 (1.41)	1.60 (1.22)^a	1.79 (1.37)^b	1.24 (1.03)^a	1.56 (1.24)^b
Abstinence	N/A	N/A	9.3%	4.7%	12.4%	6.6%

^a Significantly different from intervention group baseline assessment (P<.001).

^b Significantly different from control group baseline assessment (P<.001).

^c SCUs = standard cannabis units.

^d SDS = Severity of Dependence Scale.