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Protocol - General Cannabis Use

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Description

This questionnaire includes six items from the International Cannabis Policy Study Survey, Wave 6 (2023). Respondents are asked if they ever tried marijuana, when they last used marijuana, how often they use marijuana, how often they used marijuana in the last 30 days, length of marijuana use and how long after waking they use marijuana (daily users only). 

Specific Instructions

When there is a specific interest in assessing medical cannabis use, the PhenX Substance Use and Recovery Working Group (WG) recommends replacing “marijuana” with “medical cannabis” to specifically capture use of products for medical use. When there is an interest in capturing a broader range of cannabis products, the WG recommends considering replacing “marijuana” with “cannabis”.

Additionally, the Substance Use and Recovery WG notes that questions 4, 5, and 6 could be asked for each product used in the Cannabis Products, Types, and Modes of Use protocol with appropriate modification (e.g., replace “marijuana” with “dried herb”). This would allow for greater specificity in assessing the type of product used.

Protocols may include terms and language that could be triggering to respondents. Investigators are encouraged to have resources in place to help respondents cope with triggers as needed.

Terminology related to substances, substance use, and recovery is fluid. Updates in protocol language may be appropriate based on circumstance. Suggestions for revision have been offered to update answer responses or other components of the questionnaires to account for the constantly changing landscape. These suggestions have not been tested or validated in research studies but may be considered by investigators to enhance relevance.

Availability

This protocol is freely available; permission not required for use.

Protocol

General Cannabis Use


1.Have you ever tried marijuana?

 [ ] 1 Yes 

 [ ] 2 No 

 [ ] -77 Don’t know  

 [ ] -88 Refuse to answer  


(Ask if question 1 = 1)

2. When was the last time you used marijuana?

 [ ] 1 More than 12 months ago  

 [ ] 2 More than 3 months ago but less than 12 months ago  

 [ ] 3 More than 30 days ago, but less than 3 months ago  

 [ ] 4 Within the past 30 days  

 [ ] -77 Don’t know  

 [ ] -88 Refuse to answer  


(Ask if question 2 = 2, 3, 4) 

3. How often do you use marijuana?  

 [ ] 1 Less than once per month  

 [ ] 2 One or more times per month  

 [ ] 3 One or more times per week  

 [ ] 4 Every day or almost every day  

 [ ] -77 Don’t know  

 [ ] -88 Refuse to answer  

  


(Ask if question 2 = 4) 

4. Think specifically about the past 30 days, from [DATEFILL] up to and including today. During the past 30 days, on how many days did you use marijuana?

NUMBER OF DAYS: __________ 

-77[ ]Don’t know 

-88[ ]Refuse to answer 



(Ask if question 3 = 2, 3, 4) 

5. How long have you used marijuana at least [question 3 = 4: "daily/almost daily"; question 3 = 3: "weekly"; question 3 = 2: "monthly"]?  


You can enter in number of years, months, or days.  


 Enter # years:____________  

  OR  

 Enter # months:___________  

  OR  

 Enter # days:_____________  

  

 [ ] -77 Don’t know  

 [ ] -88 Refuse to answer  


(Ask if question 3 = 2) 

6. How soon after waking do you usually use marijuana?   


You can answer with minutes or hours, or use both hours and minutes to give a more accurate answer.  


 [ ] 1 Minutes: ____    

 [ ] 2 Hours: _____   

 [ ] -77 Don’t know  

 [ ] -88 Refuse to answer  

Personnel and Training Required

None

Equipment Needs

None

Requirements
Requirement CategoryRequired
Major equipment No
Specialized training No
Specialized requirements for biospecimen collection No
Average time of greater than 15 minutes in an unaffected individual No
Mode of Administration

Self-administered questionnaire

Lifestage

Adolescent, Adult, Senior, Pregnancy

Participants

Adolescents and adults ages 16-65

Selection Rationale

The International Cannabis Policy Study Survey (ICPS) is a well-established international survey that has been administered since 2018 to monitor marijuana use in Canada, the United States, Australia, and New Zealand. Additionally, ICPS questions are based on questions from other well-established surveys (e.g., National Survey on Drug Use and Health [NSDUH]).

Language

English, Other languages available at source

Standards
StandardNameIDSource
Derived Variables

None

Process and Review

Not Applicable

Protocol Name from Source

International Cannabis Policy Study Survey, Wave 6 (2023)

Source

Hammond, D., Goodman, S., Burkhalter, R., Corsetti, D., International Cannabis Policy Study Survey 2023 (Wave 6). September 2023.  


Consumption section, items EVER.TRY, USE.RECENT, CURRENT.USE, USE.30DAYS, USE.CONSISTENT, TIME.TO.USE. 

General References

Corsetti, D., Fataar, F., Burkalter, R., & Hammond, D. (2023). International Cannabis Policy Study Technical Report-Wave 5 (2022). Waterloo, Ontario, Canada: University of Waterloo.


Hammond, D., Goodman, S., Wadsworth, E., Rynard, V., Boudreau, C., & Hall, W. (2020). Evaluating the impacts of cannabis legalization: The International Cannabis Policy Study. International Journal on Drug Policy, 77, 102698. https://doi.org/10.1016/j.drugpo.2020.102698

Protocol ID

510307

Variables
Export Variables
Variable Name Variable IDVariable DescriptiondbGaP Mapping
Assessment of Substance Use and Substance Use Disorders
Measure Name

Patterns of Substance Use

Release Date

January 30, 2025

Definition

Instruments used separately to assess patterns of substance use in adolescents and adults.

Purpose

The purpose of this measure is to determine patterns of tobacco, binge drinking, and other drug use in adolescents and adults.

Keywords

marijuana, medical cannabis, cannabis, substance use, substance use disorder, addiction, tetrahydrocannabinol, THC, cannabidiol, CBD

Measure Protocols
Protocol ID Protocol Name
510303 Patterns of Substance Use - Adolescents
510304 Patterns of Substance Use - Adults - Binge-Drinking
510305 Patterns of Substance Use – Calendar Based Method for Detailed Cannabis Use
510306 Patterns of Substance Use - Alcohol and/or Drug Use
510307 General Cannabis Use
510308 Cannabis Products, Types, and Modes of Use
510310 Assessment of Cannabis Use Disorder