Evidence map›Paper›PMID 31188515›Full record

ArticleJournal of thrombosis and haemostasis : JTH2019

Risk prediction of recurrent venous thrombosis; where are we now and what can we add?

Jasmijn F Timp, Willem M Lijfering, Frits R Rosendaal, Saskia le Cessie, Suzanne C Cannegieter

Abstract read
In one paragraph

Article in Journal of thrombosis and haemostasis : JTH, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing 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

6 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
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  6. Review
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

5 authors.

Jasmijn F TimpDepartment of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands.
Willem M LijferingDepartment of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands.
Frits R RosendaalDepartment of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands.
Saskia le CessieDepartment of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands.
Suzanne C CannegieterDepartment of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands.

Funding

ESTABLISHMENT OF LANGERHANS CELL LINESF06TW002003 · FIC · UNIVERSITY OF TEXAS SW MED CTR/DALLAS · PI BERGSTRESSER, PAUL R · 1994 to 1994
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6 · The paper itself

Abstract

backgroundSeveral models are available to predict recurrent venous thrombosis (VT) in patients with unprovoked first events.

objectivesTo validate these prediction models externally.

methodsWithin the MEGA follow-up study (n = 3750), we externally validated the Vienna and DASH score. These models were validated (a) by using the original study's criteria for patients with unprovoked VT and (b) by using our own criteria for unprovoked VT. In addition, absolute recurrence risks based on individual VT risk factors were calculated.

resultsThe recurrence rate was 5.2 (95% CI, 4.6-5.9) per 100 patient-years in those who had a first unprovoked VT according to our definition. For the Vienna model it was 3.4 per 100 patient-years and for DASH 3.8 per 100 patient-years. The C-statistic was 0.62 for Vienna and 0.65 for DASH. The C-statistic declined to 0.58 for both Vienna and DASH when we used our own definition of "unprovoked VT." Within the provoked group a strong gradient in risk was found dependent on the presence of traditional risk factors or biomarkers in a patient.

conclusionsThe ability to distinguish patients' recurrence risks is lower than proposed in the original prediction model studies and dependent on the definition that is used for an unprovoked first event. Furthermore, our results suggest that a more-refined risk estimation is possible, also in patients with a provoked first event, who are currently all classified as low risk.

Indexed as

AdolescentAdultAgedAged, 80 and overAnticoagulantsArea Under CurveCase-Control StudiesFemaleFollow-Up StudiesHumansMaleMiddle AgedModels, BiologicalPractice Guidelines as TopicPrognosisPulmonary EmbolismAnticoagulantsmodelpredictionrecurrent venous thrombosisriskvalidationvenous thrombosis

Identifiers

PMID31188515
PMCPMC6851549

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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.