Cited by 96Coffee research and impactsSubstance Abuse Treatment and OutcomesGenetic Associations and Epidemiology

Caffeine intake, toxicity and dependence and lifetime risk for psychiatric and substance use disorders: An epidemiologic and co-twin control analysis

KENDLER, KENNETH S., MYERS, JOHN, O. GARDNER, CHARLES·2006·Psychological Medicine

Abstract

BACKGROUND: Although caffeine is the most commonly used psychoactive substance and often produces symptoms of toxicity and dependence, little is known, especially in community samples, about the association between caffeine use, toxicity and dependence and risk for common psychiatric and substance use disorders. METHOD: Assessments of lifetime maximal caffeine use and symptoms of caffeine toxicity and dependence were available on over 3600 adult twins ascertained from the population-based Virginia Twin Registry. Lifetime histories of major depression (MD), generalized anxiety disorder (GAD) and panic disorder, alcohol dependence, adult antisocial behavior and cannabis and cocaine abuse/dependence were obtained at personal interview. Logistic regression analyses in the entire sample and within monozygotic (MZ) twin pairs were conducted in SAS. RESULTS: In the entire sample, measures of maximal caffeine use, heavy caffeine use, and caffeine-related toxicity and dependence were significantly and positively associated with all seven psychiatric and substance use disorders. However, within MZ twin pairs, controlling for genetic and family environmental factors, these associations, while positive, were all non-significant. These results were similar when excluding twins who denied regular caffeine use. CONCLUSIONS: Maximal lifetime caffeine intake and caffeine-associated toxicity and dependence are moderately associated with risk for a wide range of psychiatric and substance use disorders. Analyses of these relationships within MZ twin pairs suggest that most of the observed associations are not causal. Rather, familial factors, which are probably in part genetic, predispose to both caffeine intake, toxicity and dependence and the risk for a broad array of internalizing and externalizing disorders.

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Crossref · 10.1017/s0033291706008622

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Authors
KENDLER, K. S., MYERS, J., & O. GARDNER, C.
Affiliations
Virginia Commonwealth University (US)
Venue
Psychological Medicine
Published
2006-08-08
Volume
36
Issue
12
Pages
1717-1725
ISSN
  • 0033-2917 (ISSN-L)
  • 1469-8978
OpenAlex
W2108117106
Cited by
96
References
0
Citations by year
2026: 1 · 2025: 3 · 2024: 3 · 2023: 4 · 2022: 7 · 2021: 8 · 2020: 4 · 2019: 6 · 2018: 8 · 2017: 7 · 2016: 2 · 2015: 9 · 2014: 10 · 2013: 6 · 2012: 2
FWCI
1.04
Type
journal article
Language
en
Open access
closed
Locations
  • Psychological Medicine (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • National Institute of Mental Health (MH-49492, R01MH049492)
  • National Institute on Drug Abuse (R01DA011287, DA011287)
Topics
  • Health Sciences › Medicine › Pharmacology › Coffee research and impacts
  • Health Sciences › Medicine › Epidemiology › Substance Abuse Treatment and Outcomes
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
Keywords
caffeine consumption, caffeine toxicity, caffeine dependence, mental illness, substance use disorders, major depressive disorder, generalized anxiety disorder, panic disorder, alcoholism, antisocial behavior, cannabis use disorder, cocaine abuse, monozygotic twins, genetic susceptibility, family factors, internalizing disorders, externalizing disorders
MeSH terms
Adult, Mental Disorders, Caffeine, Female, Humans, Male, Surveys and Questionnaires, Risk Factors, Twins, Monozygotic, Substance-Related Disorders

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