. Author manuscript; available in PMC: 2011 Feb 1.

Published in final edited form as: Addict Behav. 2009 Sep 19;35(2):102–110. doi: 10.1016/j.addbeh.2009.09.009

Table 1.

Conditional probability of making transition from cannabis use to cannabis dependence

	Used Cannabis n (%)	Conditional Probability	Used Cannabis ≥ 21 times in a year n (%)	Conditional Probability	Cannabis Dependence n (%)

Males	678 (70.3)	0.54	368 (52.4)	0.47	172 (17.8)

Females	1086 (70.4)	0.41 ^a	450 (40.2) ^a	0.40 ^a	177 (11.4) ^a

Total	1764 (70.4)	0.46	818 (44.9)	0.43	349 (13.9)

significant gender difference