Evidence map›Paper›PMID 29844204›Full record

Trial reportBlood advances2018

Plasma hepcidin is associated with future risk of venous thromboembolism.

Trygve S Ellingsen, Jostein Lappegård, Thor Ueland, Pål Aukrust, Sigrid K Brækkan, John-Bjarne Hansen

Open access · goldAbstract readClinical Trial
In one paragraph

Trial report in Blood advances, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
0.8field-weighted citation impact, top 26% 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

10 citing papers in PubMed, 22 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Body Iron Store and its Association with Risk of First Episode of Spontaneous Lower Extremity Deep Vein Thrombosis/ Pulmonary Embolism: A Case-Control Study.Indian journal of hematology & blood transfusion : an official journal of Indian Society of Hematology and Blood Transfusion · 2023
    Article
  5. Review
  6. Review
  7. Review
  8. Hematocrit and incidence of venous thromboembolism.Research and practice in thrombosis and haemostasis · 2020
    Article
  9. Article
  10. Associations of Common Variants inDisease markers · 2019
    Article
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

6 authors at 4 institutions in 2 countries.

Trygve S EllingsenK. G. Jebsen Thrombosis Research and Expertise Center, Department of Clinical Medicine, UiT-The Arctic University of Norway, Tromsø, Norway.
Jostein LappegårdK. G. Jebsen Thrombosis Research and Expertise Center, Department of Clinical Medicine, UiT-The Arctic University of Norway, Tromsø, Norway.
Thor UelandK. G. Jebsen Thrombosis Research and Expertise Center, Department of Clinical Medicine, UiT-The Arctic University of Norway, Tromsø, Norway.
Pål AukrustK. G. Jebsen Thrombosis Research and Expertise Center, Department of Clinical Medicine, UiT-The Arctic University of Norway, Tromsø, Norway.
Sigrid K BrækkanK. G. Jebsen Thrombosis Research and Expertise Center, Department of Clinical Medicine, UiT-The Arctic University of Norway, Tromsø, Norway.
John-Bjarne HansenK. G. Jebsen Thrombosis Research and Expertise Center, Department of Clinical Medicine, UiT-The Arctic University of Norway, Tromsø, Norway.
UiT The Arctic University of Norway · NOInstitute of Physiology and Basic Medicine · RUOslo University Hospital · NOUniversity Hospital of North Norway · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Red cell distribution width (RDW) is associated with venous thromboembolism (VTE), but the underlying mechanism(s) is unclear. Iron deficiency is associated with high RDW, and studies suggest an association between iron deficiency and VTE. To assess whether iron deficiency is a risk factor for VTE that explains the association between RDW and VTE, we conducted a nested case-control study of 390 patients with VTE and 802 age- and sex-matched controls selected from the population-based cohort of the Tromsø Study. Physical measurements and blood samples were collected from 1994 to 1995. Logistic regression models were used to calculate odds ratios (ORs) with 95% confidence intervals (CIs) for VTE by RDW, hepcidin, and ferritin light chain (FtL). RDW was inversely associated with hepcidin, FtL, and hemoglobin. The risk of VTE increased linearly across categories of higher plasma hepcidin levels. Participants with hepcidin in the highest quartile had an OR for VTE of 1.32 (95% CI, 1.00-2.42), and those in the >90% percentile had an OR for VTE of 1.66 (95% CI, 1.14-2.42) compared with the reference group (quartiles 2 and 3). The risk estimates remained similar after adjustment for C-reactive protein. The risk of VTE increased by categories of higher RDW and was strengthened after inclusion of hepcidin and FtL in the multivariable model. Our findings reject the hypothesis that iron deficiency explains the association between RDW and VTE and suggest, in contrast, that high body iron levels might increase the risk of VTE.

Indexed as

Erythrocyte IndicesModels, CardiovascularAdultAgedApoferritinsFemaleHepcidinsHumansIronIron DeficienciesMaleMiddle AgedProspective StudiesRisk FactorsVenous ThromboembolismApoferritinsHAMP protein, humanHepcidinsIron

Identifiers

PMID29844204
PMCPMC5998931
OpenAlexW2806819306

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.