Evidence map›Paper›PMID 28554933›Full record

ArticleBMJ open2017

An investigation on the use of snus and its association with respiratory and sleep-related symptoms: a cross-sectional population study.

Arna Ýr Gudnadóttir, Inga Sif Ólafsdóttir, Roelinde Middelveld, Linda Ekerljung, Bertil Forsberg, Karl Franklin, Eva Lindberg, Christer Janson

Open access · goldAbstract 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 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
0.8field-weighted citation impact, top 28% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 17 citations in OpenAlex.

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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 at 5 institutions in 2 countries.

Arna Ýr GudnadóttirDeparment of Medical Sciences: Respiratory, Allergy and Sleep Research, Uppsala University, Uppsala, Sweden.
Inga Sif ÓlafsdóttirFaculty of Medicine, University of Iceland, Reykjavik, Iceland.
Roelinde MiddelveldThe Centre for Allergy Research and the Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
Linda EkerljungDepartment of Internal Medicine and Clinical Nutrition, Göteborgs Universitet, Goteborg, Sweden.
Bertil ForsbergDepartment of Public Health and ClinicalMedicine, Occupational and Environmental Medicine, Umeå University, Umeå, Sweden.
Karl FranklinDepartment of Surgical and Perioperative Sciences, Umeå University, Umeå, Sweden.
Eva LindbergDeparment of Medical Sciences: Respiratory, Allergy and Sleep Research, Uppsala University, Uppsala, Sweden.
Christer JansonDeparment of Medical Sciences: Respiratory, Allergy and Sleep Research, Uppsala University, Uppsala, Sweden.ORCID 0000-0001-5093-6980
Uppsala University · SEUmeå University · SEKarolinska Institutet · SEReykjavík University · ISUniversity of Gothenburg · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionStudies of the health effects of moist oral tobacco, snus, have produced inconsistent results. The main objective of this study is to examine the health effects of snus use on asthma, respiratory symptoms and sleep-related problems, a field that has not been investigated before. METHODS AND MATERIAL: This cross-sectional study was based on a postal questionnaire completed by 26 697 (59.3%) participants aged 16 to 75 years and living in Sweden. The questionnaire included questions on tobacco use, asthma, respiratory symptoms and sleeping problems. The association of snus use with asthma, respiratory symptoms and sleep-related symptoms was mainly tested in never-smokers (n=16 082).

resultsThe current use of snus in never-smokers was associated with an increased risk of asthma (OR 1.51 (95% CI 1.28 to 1.77)), asthmatic symptoms, chronic bronchitis and chronic rhinosinusitis. This association was not present among ex-snus users. Snoring was independently related to both the former and current use of snus ((OR 1.37 (95% CI 1.12 to 1.68)) and (OR 1.59 (95% CI 1.34 to 1.89), respectively)). A higher risk of difficulty inducing sleep was seen among snus users.

conclusionSnus use was associated with a higher prevalence of asthma, respiratory symptoms and snoring. Healthcare professionals should be aware of these possible adverse effects of snus use.

Indexed as

AdolescentAdultAgedAge DistributionAsthmaCross-Sectional StudiesFemaleHumansLogistic ModelsMaleMiddle AgedRisk FactorsSex DistributionSleep Wake DisordersSmokingSnoringasthmachronic bronchitissleep disturbancessnoringsnustobacco

Identifiers

PMID28554933
PMCPMC5730007
OpenAlexW2617458612

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.