Matson et al reported the Single-Item Screen for Cannabis Use Disorder (SIS-C)

The authors are from the University of Washington and Veterans Affairs Puget Sound Health Care System in Seattle.

Patient selection: adult


Setting: legal cannabis use


Outcome: presence of cannabis-use disorder (CUD)


Single Item: how often marijuana used in past year


Responses: never, less than monthly, monthly, weekly, daily or almost daily


Positive screen: less than monthly, monthly, weekly, daily/almost daily

Negative screen: never


Prevalence of DSM-V CUD: 6.6%

Negative predictive value: 97-100%

Positive predictive value: 17-34%



• The reported area under the ROC curve for CUD is 0.89.

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