ArticlePsychological medicine2023
Annual incidence of substance-induced psychoses in Scandinavia from 2000 to 2016.
Article in Psychological medicine, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 28 citations in OpenAlex.
- Demographic and clinical profiles of drug-induced psychosis: age, gender, and social context in a German cohort.European archives of psychiatry and clinical neuroscience · 2026Article
- Incidence, prevalence and determinants of substance-induced mental disorders in British Columbia, 2022-2023: a population-based study.Epidemiology and psychiatric sciences · 2026Article
- Predictors of conversion to psychosis and mortality in first-episode substance-induced psychosis: a nationwide register-based study in South Korea.Schizophrenia (Heidelberg, Germany) · 2026Article
- Changes in cannabis potency and cannabis-related psychiatric harms: a 23-year ecological study in Denmark.Psychological medicine · 2026Article
- Real-world effectiveness of antipsychotic medication in relapse prevention after cannabis-induced psychosis.The British journal of psychiatry : the journal of mental science · 2026Article
- The annual trend of suicide rates from 2010 to 2021 in patients with cannabis use disorder - a national registry study.Social psychiatry and psychiatric epidemiology · 2025Article
- Impact of introducing a capacity-based mental health law in Norway: qualitative exploration of multi-stakeholder perspectives.BJPsych open · 2025Article
- Frequency and patterns of substance-induced psychosis in persons with concurrent mental health and substance use disorders during the COVID-19 pandemic: A Norwegian register-based cohort study.European psychiatry : the journal of the Association of European Psychiatrists · 2024Article
- Assessing Cannabis Use in People with Psychosis.Cannabis and cannabinoid research · 2024Review
- The Translational Future of Stress Neurobiology and Psychosis Vulnerability: A Review of the Evidence.Current neuropharmacology · 2024Review
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Authors and funding
7 authors at 6 institutions in 4 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundSubstance-induced psychosis (SIP) is a serious condition and may predispose for schizophrenia. We know too little about SIP incidence over time and across countries, including substance-specific SIPs. We estimated annual incidence rate of SIP in Denmark, Norway, and Sweden according to substance, age, gender, and socioeconomic background.
methodsData were drawn from registries covering the whole adult population in the countries. Annual incidence rate per 100 000 persons of SIPs was estimated for Denmark and Sweden from 2000 to 2016 and for Norway from 2010 to 2015.
resultsThe annual incidence rate of any SIP fluctuated between 9.3 and 14.1. The most commonly occurring SIPs were those induced by alcohol, cannabis, amphetamines, and multiple substances. There was a steady decrease in the incidence rate of alcohol-induced psychosis from the first to the last year of the observation period in Denmark (from 4.9 to 1.5) and Sweden (from 4.5 to 2.2). The incidence rate of cannabis-induced psychosis increased in all countries, from 2.6 to 5.6 in Denmark, from 0.8 to 2.7 in Sweden, and from 1.8 to 3.0 in Norway. Median age of any SIP decreased in Denmark (from 36 to 29 years) and Sweden (from 41 to 31 years). Incidence rates were higher in men and in individuals on disability pension, and increased more among those with high parental education.
conclusionsWe found similar and stable incidence rates of any SIP in all Scandinavian countries through the observation period. The incidence of alcohol-induced psychosis decreased. The incidence of cannabis-induced psychosis increased.
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