Evidence map›Paper›PMID 16183982›Full record

ArticleTobacco control2005

Health consequences of smoking 1-4 cigarettes per day.

K Bjartveit, A Tverdal

Open access · bronzeAbstract read
In one paragraph

Article in Tobacco control, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 181 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
181citing papers in PubMed, 5 pooled it
9.5field-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

181 citing papers in PubMed, 5 syntheses or guidelines pooled it, 486 citations in OpenAlex.

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  6. Biomarkers of Nicotine and Tobacco Carcinogen Exposure in Socioeconomically Disadvantaged Black Adults Receiving a Brief Smoking Reduction Intervention.Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology · 2025
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  9. Outcomes of a Tailored Intervention for Cigarette Smoking Cessation Among Latinos Living With HIV/AIDS.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2015
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  16. Differences between intermittent and light daily smokers in a population of U.S. military recruits.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2010
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121 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

2 authors at 2 institutions in 1 country.

K BjartveitNational Health Screening Service, Oslo, Norway. kjell.bjartveit@chello.no
A Tverdal
657 Oslo · NONorwegian Institute of Public Health · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo determine the risk in men and women smoking 1-4 cigarettes per day of dying from specified smoking related diseases and from any cause.

designProspective study.

settingOslo city and three counties in Norway.

participants23,521 men and 19,201 women, aged 35-49 years, screened for cardiovascular disease risk factors in the mid 1970s and followed throughout 2002. OUTCOMES: Absolute mortality and relative risks adjusted for confounding variables, of dying from ischaemic heart disease, all cancer, lung cancer, and from all causes.

resultsAdjusted relative risk (95% confidence interval) in smokers of 1-4 cigarettes per day, with never smokers as reference, of dying from ischaemic heart disease was 2.74 (2.07 to 3.61) in men and 2.94 (1.75 to 4.95) in women. The corresponding figures for all cancer were 1.08 (0.78 to 1.49) and 1.14 (0.84 to 1.55), for lung cancer 2.79 (0.94 to 8.28) and 5.03 (1.81 to 13.98), and for any cause 1.57 (1.33 to 1.85) and 1.47 (1.19 to 1.82).

conclusionsIn both sexes, smoking 1-4 cigarettes per day was associated with a significantly higher risk of dying from ischaemic heart disease and from all causes, and from lung cancer in women. Smoking control policymakers and health educators should emphasise more strongly that light smokers also endanger their health.

Indexed as

AdultConfidence IntervalsFemaleHumansLung NeoplasmsMaleMiddle AgedMyocardial IschemiaNeoplasmsNorwayProspective StudiesRisk AssessmentSex FactorsSmoking

Identifiers

PMID16183982
PMCPMC1748107
OpenAlexW2107136449

What OpenQuestion holds

Textmetadata
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.