Evidence map›Paper›PMID 21849413›Full record

ArticleNicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco2011

Hardcore smokers in Norway 1996-2009.

Marianne Lund, Karl Erik Lund, Elisabeth Kvaavik

Open access · hybridAbstract read
In one paragraph

Article in Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 pooled it
19.3field-weighted citation impact, top 1% 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

26 citing papers in PubMed, 1 synthesis or guideline pooled it, 69 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Smoking Dependence, Time-Discounting, and Sustained Cessation Behavior: A Longitudinal Study of Predominantly Light Smokers.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2024
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  8. Defining and Measuring Abstinence in Clinical Trials of Smoking Cessation Interventions: An Updated Review.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2020
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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

3 authors at 1 institution in 1 country.

Marianne LundNorwegian Institute for Alcohol and Drug Research, Centrum, Oslo, Norway. ml@sirus.no
Karl Erik Lund
Elisabeth Kvaavik
Norwegian Institute of Public Health · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionThe aim of this study was to investigate changes in the relative proportion of hardcore smokers (HCS) in Norway for the years 1996-2009.

methodsData were derived from Statistics Norway's annually cross-sectional representative samples of the adult population. The total sample size of smokers each year was between 250 and 500. The outcome measure was HCS, defined by their intention not to quit smoking and absence of attempts to quit during the last 12 months. Logistic regression analysis was conducted to estimate the association between time (survey year) and the number of HCS.

resultsWe identified three groups of smokers: occasional smokers, daily non-HCS, and HCS. The relative proportion of HCS declined in the period 1996-2009, from 30% to 23%. A model adjusted for gender, age, educational level, and the use of snus (smokeless tobacco) showed the same downward trend.

conclusionsWithin this sample of Norwegian smokers, the relative share of HCS is not increasing. This knowledge is important for tobacco prevention policy. The result does not support a hardening hypothesis regarding changes in the size of the group of HCS. Further analysis is needed to investigate individual resistance to smoking cessation.

Indexed as

AdultAgedCross-Sectional StudiesData CollectionFemaleHumansLogistic ModelsMaleMiddle AgedNorwayPrevalenceSmokingSmoking CessationTobacco Use Disorder

Identifiers

PMID21849413
PMCPMC3203137
OpenAlexW2142138420

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

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.