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Study breakdown

Nearly two-thirds of regular cannabis users at French music festivals met criteria for dependence

Cross SectionalModerate evidence
The takeaway

Among 194 regular cannabis users surveyed at French music festivals, 63.4% met DSM-IV criteria for cannabis dependence, and dependent users were more likely to also use stimulants and hallucinogens.

People interested in cannabis dependence prevalence and harm reduction in festival settings.

63.4% of regular users at festivals met dependence criteria

What the researchers found

63.4% of regular cannabis users (at least monthly) at music festivals met DSM-IV dependence criteria. Over 40% of regular users reported health and/or social consequences. Dependent users were significantly more likely to also use stimulants and hallucinogens compared to non-dependent users.

Why it matters

Music festivals attract high rates of substance use but are rarely targeted for cannabis-specific harm reduction. Finding that most regular users at festivals meet dependence criteria suggests these events could be important venues for reaching people who might benefit from treatment information.

The numbers in context

383 total participants. Over two-thirds reported past-year cannabis use. 194 regular users (at least monthly). 63.4% of regular users met dependence criteria. 40%+ reported health/social consequences. 13 music events surveyed.

How the study worked

Cross-sectional survey at 13 music events in Loire-Atlantique, France (July 2017-July 2018). 383 participants aged 18+ completed face-to-face interviews covering demographics, substance use, and DSM-IV cannabis dependence criteria.

What this study cannot tell us

Festival-attending cannabis users are not representative of all cannabis users. DSM-IV dependence criteria (now replaced by DSM-5 use disorder) may overcategorize dependence. French music festival culture may differ from other countries. Self-report measures.

How to read the evidence

Cross-sectional survey with face-to-face interviews and validated criteria. The festival setting makes this a convenience sample that likely overrepresents heavier users.

When this study was published

Published in 2024 with data from 2017-2018 French music festivals.

The bigger picture

Traditional health care settings reach only a small proportion of cannabis users who might benefit from support. Festivals represent an alternative venue where targeted harm reduction messaging could reach a population that skews toward heavier, more consequential use patterns.

Questions still open

  • Would harm reduction messaging at festivals actually change behavior? Are festival cannabis users aware they meet dependence criteria? How do dependence rates at festivals compare to community samples of regular users?

Common questions

Are most regular cannabis users at festivals dependent?
In this study, nearly two-thirds (63.4%) of people who used cannabis at least monthly and attended music festivals met DSM-IV criteria for dependence. This is higher than general population estimates, likely reflecting the festival-going population.
What other substances did dependent cannabis users also take?
Dependent cannabis users were significantly more likely than non-dependent users to also use stimulants (like MDMA or amphetamines) and hallucinogens, highlighting a polysubstance use pattern.

Read the original research

Cannabis use and dependence among festival attendees: results from the French OCTOPUS survey.

BMC public health, 24(1), 992

Citation

Chaaban, Sarah; Istvan, Marion; Schreck, Benoit; Laigo, Pauline; Rousselet, Morgane; Grall-Bronnec, Marie; Pain, Stéphanie; Victorri-Vigneau, Caroline. (2024). Cannabis use and dependence among festival attendees: results from the French OCTOPUS survey.. BMC public health, 24(1), 992. https://doi.org/10.1186/s12889-024-18496-9

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