|
Smoked cannabis alone
|
0.53
|
0.06
|
5.09
|
0.000
|
|
Tobacco consumption
|
0.80
|
0.23
|
6.13
|
0.000
|
|
Frequency of tobacco use
|
0.42
|
0.12
|
3.43
|
0.001
|
|
Age of onset of cannabis use
|
− 0.91
|
0.15
|
− 4.74
|
0.000
|
|
Often smoked cannabis alone
|
0.91
|
0.39
|
7.20
|
0.000
|
|
Perception of risk related to tobacco and cannabis use
|
0.15
|
0.21
|
2.13
|
0.039
|
|
Representations of the unpleasant psychological effects and physical risks of cannabis
|
− 0.32
|
0.65
|
− 3.85
|
0.000
|
|
Representations of positive school effects of cannabis
|
0.37
|
0.19
|
2.53
|
0.016
|
|
Representations of dependency
|
0.47
|
0.72
|
5.31
|
0.000
|
|
Cannabis dependence
|
− 0.45
|
0.09
|
− 3.59
|
0.001
|
