Evidence map›Paper›PMID 27004534›Full record

ArticleLipids in health and disease2016

The relationship between omega-3 and smoking habit: a cross-sectional study.

Nóris Scaglia, José Chatkin, Kenneth R Chapman, Ivone Ferreira, Mario Wagner, Peter Selby, Johane Allard, Noe Zamel

Open access · goldAbstract read
In one paragraph

Article in Lipids in health and disease, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 3 pooled it
3.7field-weighted citation impact, top 8% 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

20 citing papers in PubMed, 3 syntheses or guidelines pooled it, 42 citations in OpenAlex.

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  13. Chronic Obstructive Pulmonary Disease: Is Social Injustice the Elephant in the Room?American journal of respiratory and critical care medicine · 2021
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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 4 institutions in 2 countries.

Nóris ScagliaPontifícia Universidade Catolica do Rio Grande do Sul (PUCRS), Porto Alegre, Brazil.
José ChatkinPontifícia Universidade Catolica do Rio Grande do Sul (PUCRS), Porto Alegre, Brazil. jmchatkin@pucrs.br.
Kenneth R ChapmanAsthma & Airway Centre, University Health Network, Toronto, Canada.
Ivone FerreiraDepartment of Family and Community Medicine and Psychiatry, University of Toronto, Toronto, Canada.
Mario WagnerPontifícia Universidade Catolica do Rio Grande do Sul (PUCRS), Porto Alegre, Brazil.
Peter SelbyDepartment of Medicine, Toronto General Hospital, University of Toronto, Toronto, Canada.
Johane AllardDepartment of Medicine, Division of Respiratory Diseases, University of Toronto, Toronto, Canada.
Noe ZamelDepartment of Medicine, Toronto General Hospital, University of Toronto, Toronto, Canada.
Pontifícia Universidade Católica do Rio Grande do Sul · BRUniversity of Toronto · CAToronto General Hospital · CAUniversity Health Network · CA

Funding

Canadian Institutes of Health Research
6 · The paper itself

Abstract

backgroundOmega3 polyunsaturated fatty acids (PUFAs) are related to several diseases, including smoking. The aim of this study was to evaluate the relationship between omega-3 intake and tobacco smoking, taking into account the qualitative differences in dietary intake between smokers and non-smokers, the amount of the ingested PUFA and their red blood (RBC) contents. We also looked for an association between omega-3 RBC content and smoking, and also between omega3 intake and the level of nicotine dependence.

methodsUsing a cross-sectional study, we included 50 current smokers (group I) and 50 lifetime non-smokers (group II), aged 18-75 years. We screened them at the Toronto Western Hospital and the Centre for Addiction and Mental Health (Toronto, Canada). The subjects completed a questionnaire with demographic data, lifestyle habits and details of food intake. The PUFAs measured in the RBC membranes were alphalinolenic acid, eicosapentaenoic acid (EPA), docosapentaenoic acid and docosahexaenoic acid (DHA). In order to perform an adjusted comparison between smokers and non-smokers we used the ANCOVA model.

resultsAfter adjusting for confounding factors, non-smokers showed higher consumption of PUFAs, especially salmon: 800 g (0-7.740) than smokers 430 g (0-2.150) P < 0.001. They also had higher DHA levels compared to smokers: 4.81% (2.79-10.21) and 4.13% (2.33-7.73), respectively, p < 0.05. The other PUFAs showed no significant differences between the two groups.

conclusionsSmokers ate less fish rich in omega3 fatty acids than non-smokers, showing and inverse and significant relationship between omega3 intake and smoking. Smokers had lower levels of DHA and EPA, a not previously reported finding. Considering that PUFAs probably interfere in smoking habit, the increase in omega-3 consumption may become a perspective in prevention or treatment of smoking. However, this inference must be evaluated through specific studies.

Indexed as

Feeding BehaviorSmokingAdultAgedCanadaCross-Sectional StudiesDietary SupplementsEatingErythrocyte CountFatty Acids, Omega-3FemaleFish ProductsHumansMaleMiddle AgedTobacco Use DisorderFatty Acids, Omega-3Cigarette smokingDocosapentaenoic acidEicosapentaenoic acidFatty acidsOmega-3

Identifiers

PMID27004534
PMCPMC4804563
OpenAlexW2311632699

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.