Evidence map›Paper›PMID 30656277›Full record

ArticleResearch and practice in thrombosis and haemostasis2019

Dietary intake of marine n-3 polyunsaturated fatty acids and future risk of venous thromboembolism.

Trond Isaksen, Line H Evensen, Stein Harald Johnsen, Bjarne K Jacobsen, Kristian Hindberg, Sigrid K Brækkan, John-Bjarne Hansen

Open access · goldAbstract read
In one paragraph

Article in Research and practice in thrombosis and haemostasis, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 3 pooled it
2.0field-weighted citation impact, top 15% 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

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

  1. The Impact of Omega Fatty Acids on DKD: A Multimodal Study Integrating Mendelian Randomization, Proteomic Mediation Analysis, and Meta-Analysis.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2026
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  15. Nutrition and venous thrombosis: An exercise in thinking about survivor bias.Research and practice in thrombosis and haemostasis · 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

7 authors at 2 institutions in 1 country.

Trond IsaksenK.G Jebsen Thrombosis Research and Expertise Center (TREC) Department of Clinical Medicine UiT-The Arctic University of Norway Tromsø Norway.
Line H EvensenK.G Jebsen Thrombosis Research and Expertise Center (TREC) Department of Clinical Medicine UiT-The Arctic University of Norway Tromsø Norway.ORCID 0000-0002-7169-9408
Stein Harald JohnsenDepartment of Neurology University Hospital of North Norway Tromsø Norway.
Bjarne K JacobsenCentre for Sami Health Research and the Epidemiology of chronic diseases research group Department of Community Medicine UiT-The Arctic University of Norway Tromsø Norway.
Kristian HindbergK.G Jebsen Thrombosis Research and Expertise Center (TREC) Department of Clinical Medicine UiT-The Arctic University of Norway Tromsø Norway.
Sigrid K BrækkanK.G Jebsen Thrombosis Research and Expertise Center (TREC) Department of Clinical Medicine UiT-The Arctic University of Norway Tromsø Norway.
John-Bjarne HansenK.G Jebsen Thrombosis Research and Expertise Center (TREC) Department of Clinical Medicine UiT-The Arctic University of Norway Tromsø Norway.
University Hospital of North Norway · NOUiT The Arctic University of Norway · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundStudies on the association between long-chained n-3 polyunsaturated fatty acids (n-3 PUFAs) and risk of venous thromboembolism (VTE) are conflicting, potentially due to challenges related to assessment of n-3 PUFA intake and changes in diet during follow-up.

objectivesTo investigate whether dietary intake of marine n-3 PUFAs was associated with risk of incident VTE in a population-based cohort with repeated assessments of n-3 PUFA intake.

methodsWe recruited 21 970 participants (after excluding 7570 with incomplete data) from the fourth (1994-1995) and sixth (2007-2008) surveys of the Tromsø Study, and recorded incident VTEs up to 2016. Intake of n-3 PUFAs was computed from self-reported consumption of fat and lean fish, fish spread, and supplements. Cox proportional hazards regression models with n-3 PUFA intake as a time-varying variable were used to calculate hazard ratios (HRs) with 95% confidence intervals (CIs) for VTE across quartiles (Q) of n-3 PUFA intake.

resultsThere were 541 incident VTEs during follow-up. Compared to Q1, subjects in Q2-4 had 22%-26% lower risk of VTE (HR Q2 0.74, 95% CI 0.57-0.96; HR Q3 0.77, 95% CI 0.59-0.99; HR Q4 0.78, 95% CI 0.61-1.00). The association was most pronounced for provoked VTE, particularly provoked pulmonary embolism (PE), with risk estimates of 0.42 (95% CI 0.25-0.72), 0.40 (95% CI 0.23-0.68), and 0.61 (95% CI 0.38-0.96) for Q2-4, respectively.

conclusionsDietary intake of marine n-3 PUFAs was associated with a lower risk of VTE, particularly provoked PE. The association displayed a threshold pattern and suggested a protective effect of an n-3 PUFA intake ≥4.7 g/week.

Indexed as

deep vein thrombosisdietomega‐3 fatty acidspulmonary embolismrisk factorsvenous thromboembolism

Identifiers

PMID30656277
PMCPMC6332709
OpenAlexW2905564836

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.