Evidence map›Paper›PMID 29288187›Full record

ArticleBMJ open2017

Association of occasional smoking with total mortality in the population-based Tromsø study, 2001-2015.

Maja-Lisa Løchen, Inger Torhild Gram, Jan Mannsverk, Ellisiv B Mathiesen, Inger Njølstad, Henrik Schirmer, Tom Wilsgaard, Bjarne K Jacobsen

Abstract read
In one paragraph

Article in BMJ open, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
–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

19 citing papers in PubMed.

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  13. Concentrations of Cotinine and 4-(Methylnitrosamino)-1-(3-Pyridyl)-1-Butanol (NNAL) in U.S. Non-Daily Cigarette Smokers.Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology · 2021
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  19. Non-Daily Cigarette Smokers: Mortality Risks in the U.S.American journal of preventive medicine · 2019
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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

8 authors.

Maja-Lisa LøchenDepartment of Community Medicine, UiT The Arctic University of Norway, Tromsø, Norway.
Inger Torhild GramDepartment of Community Medicine, UiT The Arctic University of Norway, Tromsø, Norway.
Jan MannsverkDivision of Cardiothoracic and Respiratory Medicine, Department of Cardiology, University Hospital of North Norway, Tromsø, Norway.
Ellisiv B MathiesenDepartment of Clinical Medicine, UiT The Arctic University of Norway, Tromsø, Norway.
Inger NjølstadDepartment of Community Medicine, UiT The Arctic University of Norway, Tromsø, Norway.
Henrik SchirmerDepartment of Clinical Medicine, UiT The Arctic University of Norway, Tromsø, Norway.
Tom WilsgaardDepartment of Community Medicine, UiT The Arctic University of Norway, Tromsø, Norway.
Bjarne K JacobsenDepartment of Community Medicine, UiT The Arctic University of Norway, Tromsø, Norway.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesThere is a shift in the smoking population from daily smokers to light or occasional smokers. The knowledge about possible adverse health effects of this new smoking pattern is limited. We investigated smoking habits with focus on occasional smoking in relation to total mortality in a follow-up study of a Norwegian general population.

settingA population study in Tromsø, Norway.

methodsWe collected smoking habits and relevant risk factors in 4020 women and 3033 men aged 30-89 years in the Tromsø Study in 2001. The subjects were followed up regarding total mortality through June 2015.

resultsAmong the participants, there were 7% occasional smokers. Occasional smokers were younger, more educated and used alcohol more frequently than other participants. A total of 766 women and 882 men died during the follow-up. After the adjustment for confounders, we found that occasional smoking significantly increased mortality by 38% (95% CI 8% to 76%) compared with never smokers. We report a dose-response relationship in the hazards of smoking (daily, occasional, former and never smoking).

conclusionsOccasional smoking is not a safe smoking alternative. There is a need for information to the general public and health workers about the health hazards of occasional smoking. More work should be done to motivate this often well-educated group to quit smoking completely.

Indexed as

MortalityAdultAgedAged, 80 and overFemaleHumansLongitudinal StudiesMaleMiddle AgedMotivationNorwayProportional Hazards ModelsRisk FactorsSmokingSurveys and Questionnairesepidemiologypreventive medicinepublic healthsmoking

Identifiers

PMID29288187
PMCPMC5770901

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.