Table 1.

Average count of cluster variables and age onset of use in each cluster and comparison of variables in each pair.

Variable	Cluster 1	Cluster 2	Cluster 3	1 vs 2 p-value	1 vs 3 p-value	2 vs 3 p-value
Adult antisocial       symptoms	2.84	5.03	3.06	0.001	0.89	0.001
CD symptoms	1.29	3.84	0.83	0.001	0.45	0.001
Psychiatric     Disorders	0.39	0.53	0.28	0.49	0.86	0.48
Cannabis use   severity count	2.61	2.73	2.89	0.45	0.23	0.64
Withdrawal    symptoms	1.10	1.80	1.61	0.01	0.37	0.88
Dependence    symptoms	4.77	6.21	4.83	0.001	0.99	0.01
Age onset use             (yrs)	13.94	11.46	19.44	0.001	0.001	0.001