Evidence map›Paper›PMID 16880445›Full record

ArticleCMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne2006

Milestones in the natural course of onset of cigarette use among adolescents.

André Gervais, Jennifer O'Loughlin, Garbis Meshefedjian, Christina Bancej, Michèle Tremblay

Abstract read
In one paragraph

Article in CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 77 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
77citing papers in PubMed, 4 pooled it
–field-weighted citation impact
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

77 citing papers in PubMed, 4 syntheses or guidelines pooled it.

  1. Pooled it
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  3. Pooled it
  4. Pooled it
  5. Acute phenylalanine/tyrosine depletion reduces motivation to smoke cigarettes across stages of addiction.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2011
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  7. [Nicotine consumption in childhood and adolescence-fundamentals and considerations for handling the topic in child and adolescent psychiatric settings].Neuropsychiatrie : Klinik, Diagnostik, Therapie und Rehabilitation : Organ der Gesellschaft Osterreichischer Nervenarzte und Psychiater · 2026
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  13. Development of Dependence in Smokers and Rodents With Voluntary Nicotine Intake: Similarities and Differences.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2023
    Review
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  15. Initiation or cessation: what keeps the prevalence of smoking higher in Quebec than in the rest of Canada?Health promotion and chronic disease prevention in Canada : research, policy and practice · 2021
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  19. Is Smoking Cessation in Young Adults Associated With Tobacco Retailer Availability in Their Activity Space?Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2020
    Article
  20. Article

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors.

André GervaisAgence de santé et des services sociaux, Direction de santé publique, Montréal, Que.
Jennifer O'Loughlin
Garbis Meshefedjian
Christina Bancej
Michèle Tremblay

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe natural course of onset of cigarette use has been conceptualized as progressing sequentially through 5 stages (preparation, trying, irregular use, regular use, nicotine-dependent smoking). However, recent studies suggest that symptoms of nicotine dependence can occur early in the onset process, raising questions about the validity of this model. The objective of our study was to describe the sequence and timing of 12 milestones (6 related to cigarette use and 6 to symptoms of nicotine dependence) during onset of cigarette use.

methodsGrade 7 students in 10 secondary schools in Montréal (n = 1293) were followed prospectively every 3-4 months for 5 years. Using Kaplan-Meier analysis, we computed the number of months after first puff at which the cumulative probability of attaining each milestone was 25%, among 311 participants who initiated cigarette use during follow-up.

resultsInhalation rapidly followed first puff. The cumulative probability of inhalation was 25% at 1.5 months (95% confidence interval [CI] 1.5-2.5). The cumulative probability (and 95% CI) was 2.5 months (1.5-2.5) for mental addiction, 2.5 (1.0-3.0) for smoking a whole cigarette, 4.5 (2.5-8.8) for cravings, 5.4 (3.8-9.7) for physical addiction, 8.8 (7.0-11.9) for monthly smoking, 11.0 (6.4-16.8) for withdrawal symptoms, 13.0 (10.3-20.5) for tolerance, 19.4 (14.5-31.7) for weekly smoking, 19.5 (14.0-23.9) for lifetime total of 100 cigarettes, 23.1 (19.7-37.6) for daily smoking and 40.6 (35.1-56.0) for conversion to tobacco dependence.

interpretationSymptoms of nicotine dependence develop soon after first puff and can precede monthly, weekly and daily smoking. Cessation interventions that manage dependence symptoms may be needed soon after first puff.

Indexed as

Adolescent BehaviorSmokingAdolescentDisease ProgressionFemaleHumansMaleProspective StudiesTobacco Use Disorder

Identifiers

PMID16880445
PMCPMC1513423

What OpenQuestion holds

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Registered trials

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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.