Evidence map›Paper›PMID 23318372›Full record

ArticleThe American journal of psychiatry2013

Early smoking onset and risk for subsequent nicotine dependence: a monozygotic co-twin control study.

Kenneth S Kendler, John Myers, M Imad Damaj, Xianging Chen

Open access · greenAbstract readTwin Study
In one paragraph

Article in The American journal of psychiatry, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 92 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
92citing papers in PubMed, 2 pooled it
7.4field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

92 citing papers in PubMed, 2 syntheses or guidelines pooled it, 176 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Reactions to a Nicotine Reduction Policy Among Adolescents Who Smoke: A Qualitative Study.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2024
    Trial
  4. Trial
  5. Trial
  6. Trial
  7. Characteristics of smoking used cigarettes among an incarcerated population.Psychology of addictive behaviors : journal of the Society of Psychologists in Addictive Behaviors · 2015
    Trial
  8. Article
  9. Article
  10. Article
  11. Article
  12. Planned versus Unplanned Daily Substance Use among Sexual Minority Youth: The Moderating Role of Social Norms.Clinical psychological science : a journal of the Association for Psychological Science · 2025
    Article
  13. Article
  14. The Effects of THC and Nicotine on Attention: A Narrative Review.Current topics in behavioral neurosciences · 2025
    Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

32 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Kenneth S KendlerDepartment of Psychiatry, Virginia Commonwealth University School of Medicine, Richmond, USA. kendler@vcu.edu
John Myers
M Imad Damaj
Xianging Chen
Virginia Commonwealth University · US

Funding

CTSA INFRASTRUCTURE FOR PEDIATRIC RESEARCHUL1RR031990 · NCRR · VIRGINIA COMMONWEALTH UNIVERSITY · PI CLORE, JOHN N. · 2010 to 2011
$7.7M
TWIN-FAMILY STUDY OF DRUG USE, ABUSE, AND DEPENDENCER01DA011287 · NIDA · VIRGINIA COMMONWEALTH UNIVERSITY · PI KENDLER, KENNETH SEEDMAN · 1998 to 2007
$2.6M
THE EPIDEMIOLOGY OF MOOD, ANXIETY AND ALCOHOL DISORDERSR01MH049492 · NIMH · VIRGINIA COMMONWEALTH UNIVERSITY · PI KENDLER, KENNETH SEEDMAN · 1992 to 2004
$1.3M
GENETICS OF NICOTINE AND OTHER ABUSED SUBSTANCESK01DA019498 · NIDA · VIRGINIA COMMONWEALTH UNIVERSITY · PI CHEN, XIANGNING · 2006 to 2010
$844k
EPIDEMIOLOGY OF ANXIETY AND DEPRESSIONR01MH040828 · NIMH · VIRGINIA COMMONWEALTH UNIVERSITY · PI KENDLER, KENNETH SEEDMAN · 1986 to 1992
–
NCRR NIH HHS UL1 RR031990NCRR NIH HHS UL1RR031990NIDA NIH HHS DA011287NIDA NIH HHS DA019498NIDA NIH HHS DA-49492NIDA NIH HHS K01 DA019498NIDA NIH HHS R01 DA011287NIMH NIH HHS MH40828NIMH NIH HHS R01 MH040828NIMH NIH HHS R01 MH049492
6 · The paper itself

Abstract

objectiveEarly onset of regular smoking is associated with an elevated risk for later nicotine dependence. Whether or not this association is causal is unknown and has substantial public policy implications.

methodThe authors used a monozygotic co-twin control study design. Pairs were selected from the Virginia Adult Twin Study of Psychiatric and Substance Use Disorders for discordance in age at onset of regular smoking. Nicotine dependence was measured by the Fagerström test for nicotine dependence and level of craving.

resultsThe authors identified 175 male-male and 69 female-female monozygotic twin pairs who differed by at least 2 years in age at onset of regular smoking. During their period of heaviest smoking, the twin who began smoking earlier had significantly higher Fagerström test scores in both the male-male (Cohen's d=0.20) and female-female twin pairs (d=0.26). Craving for cigarettes when unable to smoke was also higher in the early-onset member in both groups (male pairs, d=0.38; female pairs, d=0.25). The early-onset smoking twin did not differ from the later-onset twin in symptoms of alcohol or cannabis abuse or dependence, current alcohol use, or maximal level of cannabis, sedative, stimulant, or cocaine use.

conclusionsControlling for genetic and familial-environmental effects, age at onset of regular smoking predicted level of nicotine dependence. Consistent with the animal literature, these findings suggest that in humans, early nicotine exposure directly increases level of later nicotine dependence. These results should be interpreted in the context of the methodological strengths and limitations of the monozygotic co-twin design.

Indexed as

AdultAge of OnsetBehavior, AddictiveFemaleHumansMaleRisk FactorsSex CharacteristicsSmokingSubstance-Related DisordersTobacco Use DisorderTwins, MonozygoticVirginia

Identifiers

PMID23318372
PMCPMC3615117
OpenAlexW2117546511

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.