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. 2012 Apr 26;7:15. doi: 10.1186/1747-597X-7-15

Table 2.

Key study outcomes among completer sample, by intervention group, at baseline, 3-month follow-up (FU3) and 12-month follow-up (FU12)

Measure Group N Mean (95 % CI)
Baseline FU 3 FU 12
Number of days cannabis used
Cannabis
40
24.0 (22.2-25.8)
23.1 (20.7-25.5)
22.3 (19.8-24.8)
Health
32
23.9 (21.8-26.0)
23.1 (20.6-25.5)
22.1 (18.9-25.3)
Number of cannabis use episodes/day
Cannabis
40
2.3 (1.7-2.9)
2.4 (1.8-3.0)
2.6 (1.6-3.7)
 
Health
32
2.0 (1.7-2.3)
2.4 (1.5-3.4)
2.2 (1.7-2.6)
 
 
 
Proportion Responding YES
 
 
N
Baseline
FU 3
FU 12
Deep inhalation/ breathholding
Cannabis*
40
78 %
52 %
57 %
Health
32
81 %
78 %
68 %
Driving after cannabis use
Cannabis*
40
44 %
31 %
24 %
  Health 32 30 % 27 % 24 %

* Significant change over periods (p < .05).