TABLE 1.

Rates of Endorsement for the Ordinal Stem and Diagnostic Criteria

	Males	Females
Ordinal stema	44.0% (n = 114)	25.1% (n = 92)
Failure to fulfill major role obligation at work, school, or homeb	13.9% (n = 36)	4.1% (n = 15)
Ever use it in a situation in which it might have been physically dangerous?	17.8% (n = 46)	5.4% (n = 20)
Have legal problems or traffic accidents because you were using marijuana?	4.6% (n = 12)	0.3% (n = 1)
Using it causes problems with other people?	10.8% (n = 28)	4.6% (n = 17)
Use a lot more in order to get high or feel its effects compared with when you first started?	16.6% (n = 43)	9.0% (33)
Withdrawal symptomsc	15.4% (n = 40)	8.17% (n = 30)
Ended up taking a lot more than you intended or planned?	21.2% (n = 55)	8.7% (n = 32)
Desire or attempt to cut down?	25.5% (n = 66)	10.9% (n = 40)
Spend a lot of time using it, recovering from using it, or doing whatever you had to do to get it?	13.1% (n = 34)	4.6% (n = 17)
Take it so often … instead of working, studying … or spending time with family and friends?	9.6% (n = 25)	4.1% (n = 15)
Using it causes you physical problems, or makes you depressed or very nervous?	8.1% (n = 21)	3.8% (n = 14)
Ever crave, desire, or have an urge for smoking marijuana?	18.5% (n = 48)	9.3% (n = 34)

Note: All items were prefaced with, ‘During this time when you used cannabis the most did you … ?’

^a0 = Never tried or tried but never for more than six times in lifetime, 1 = tried and had used for more than six times in lifetime, 2 = tried and had used for 11+ times in a month; endorsement rates reflect percentage who endorsed 1 or 2 on the stem.

^bAggregate of ‘Use while doing something important like being at school or work or taking care of children?’ and ‘Stay away from work or miss appointments because you were using it?’

^cAggregate of ‘Did you ever have one or more of the withdrawal symptoms in the list?’ and ‘Use it to relieve, stop, or avoid getting sick or withdrawal symptoms?’