Table 2.

ASSIST score questions, possible responses, and WHO weights [28]. ASSIST: Alcohol, Smoking, and Substance Involvement Screening Test; WHO: World Health Organization.

Question	Response (WHO weight)
1. During the past 3 months, how often have you used cannabis?	Never (0); once or twice (4); monthly (5); weekly (6); daily or almost daily (7)
2. During the past 3 months, how often have you had a strong desire or urge to use cannabis?	Never (0); once or twice (4); monthly (5); weekly (6); daily or almost daily (7)
3. During the past 3 months, how often has your use of cannabis led to health, social, legal, or financial problems?	Never (0); once or twice (4); monthly (5); weekly (6); daily or almost daily (7)
4. During the past 3 months, how often have you failed to do what was normally expected of you because of your use of cannabis?	Never (0); once or twice (4); monthly (5); weekly (6); daily or almost daily (7)
5. Has a friend or relative or anyone else ever expressed concern about your use of cannabis?	No, never (0); yes, but not in the past 3 months (3); yes, in the past 3 months (6)
6. Have you ever tried and failed to control, cut down, or stop using cannabis?	No, never (0); yes, but not in the past 3 months (3); yes, in the past 3 months (6)