Book contents
- Marijuana and Madness
- Marijuana and Madness
- Copyright page
- Contents
- Contributors
- Preface
- Part I Pharmacology of Cannabis and the Endocannabinoid System
- Part II The Changing Face of Cannabis
- Chapter 4 The Epidemiology of Cannabis Use and Cannabis Use Disorder
- Chapter 5 Is Cannabis Becoming More Potent?
- Chapter 6 Policy Implications of the Evidence on Cannabis Use and Psychosis
- Part III Cannabis and the Brain
- Part IV Cannabis, Anxiety, and Mood
- Part V Cannabis and Psychosis
- Part VI Cannabinoids and Schizophrenia: Aetiopathology and Treatment Implications
- Part VII Cannabinoids and Schizophrenia: Aetiopathology and Treatment Implications
- Part VIII Special Topics
- Index
- References
Chapter 4 - The Epidemiology of Cannabis Use and Cannabis Use Disorder
from Part II - The Changing Face of Cannabis
Published online by Cambridge University Press: 12 May 2023
- Marijuana and Madness
- Marijuana and Madness
- Copyright page
- Contents
- Contributors
- Preface
- Part I Pharmacology of Cannabis and the Endocannabinoid System
- Part II The Changing Face of Cannabis
- Chapter 4 The Epidemiology of Cannabis Use and Cannabis Use Disorder
- Chapter 5 Is Cannabis Becoming More Potent?
- Chapter 6 Policy Implications of the Evidence on Cannabis Use and Psychosis
- Part III Cannabis and the Brain
- Part IV Cannabis, Anxiety, and Mood
- Part V Cannabis and Psychosis
- Part VI Cannabinoids and Schizophrenia: Aetiopathology and Treatment Implications
- Part VII Cannabinoids and Schizophrenia: Aetiopathology and Treatment Implications
- Part VIII Special Topics
- Index
- References
Summary
Cannabis is among the most widely-used substances worldwide. Because cannabis use can incur some harms to health, understanding the prevalence of cannabis use and cannabis use disorder in the general population and how this has changed over time is an important public health priority. The prevalence of cannabis use varies widely across countries, demographic characteristics, and time. However, prevalence is consistently highest among young adults. Rates are generally higher in males, although this may be changing in younger US cohorts. Across regions, prevalence rates of past-year cannabis use were lowest in Asian countries and some countries in Central and South America, and intermediate in Australia, New Zealand, and many European countries. Highest prevalences and greatest increases over time were found in adult participants in recent surveys in North America, including the United States and Canada, where public perception of risk in cannabis use is decreasing. Cannabis use disorder is defined by the same criteria that are used to define other substance use disorders. The risk of cannabis use disorder among adult cannabis users is now much higher than it was in the early 1990s, ranging from 20–33% of users, depending on their frequency of use.
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- Marijuana and Madness , pp. 31 - 42Publisher: Cambridge University PressPrint publication year: 2023