Evidence map›Paper›PMID 27084254›Full record

SynthesisInternational journal of hematology2016

Thromboembolism in patients with immune thrombocytopenia (ITP): a meta-analysis of observational studies.

Wendy J Langeberg, W Marieke Schoonen, Melissa Eisen, Laurence Gamelin, Scott Stryker

Abstract readMeta-Analysis
PubMed Publisher
In one paragraph

Synthesis in International journal of hematology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 3 pooled it
4.1field-weighted citation impact, top 6% 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

29 citing papers in PubMed, 3 syntheses or guidelines pooled it, 50 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

5 authors at 2 institutions in 2 countries.

Wendy J LangebergAmgen Inc., Thousand Oaks, CA, USA.
W Marieke SchoonenAmgen Ltd, 1 Sanderson Road (Uxbridge Business Park), Uxbridge, UB8 1DH, England, UK. mariekes@amgen.com.
Melissa EisenAmgen Inc., Thousand Oaks, CA, USA.
Laurence GamelinAmgen Inc., Thousand Oaks, CA, USA.
Scott StrykerAmgen Inc., South San Francisco, CA, USA.
Amgen (United States) · USAmgen (United Kingdom) · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This meta-analysis describes the incidence rate of arterial and venous thromboembolism (ATE and VTE) in patients with immune thrombocytopenia (ITP), and the relative risk of ATE and VTE in patients with ITP and comparable populations without ITP. MEDLINE and EMBASE were systematically searched for observational studies reporting incidence rates of ATE and VTE in populations with and without ITP between 1996 and 2013 [follow-up completed before thrombopoietin receptor (TPOr) agonists were commercially available]. Three large, population-based studies were identified from Denmark, the United Kingdom, and the United States. The incidence of ATE per 100 patient-years among patients with ITP ranged from 1.0 to 2.8, and among populations without ITP ranged from 0.7 to 1.8; the summary relative risk adjusted for matching factors (aRR) was 1.5 [95 % confidence interval (CI) 1.3, 1.8]. The incidence of VTE per 100 patient-years among patients with ITP ranged from 0.4 to 0.7, and among populations without ITP ranged from 0.1 to 0.4; the summary aRR (95 % CI) was 1.9 (1.4, 2.7). The risk of ATE and VTE among patients with ITP, based on evidence from three large, population-based observational studies, should be considered when evaluating the risk of thromboembolism attributed to ITP treatments, such as TPOr agonists.

Indexed as

DenmarkHumansIncidenceObservational Studies as TopicPurpura, Thrombocytopenic, IdiopathicRisk AssessmentThromboembolismUnited KingdomUnited StatesImmune thrombocytopenia (ITP)Meta-analysisRomiplostimThrombocytopeniaThromboembolism (TE)Thrombopoietin receptor (TPOr) agonists

Identifiers

PMID27084254
OpenAlexW2328469605

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.