Evidence map›Paper›PMID 24096684›Full record

ArticleEuropean journal of clinical pharmacology2014

Sex differences in spontaneous reports on adverse bleeding events of antithrombotic treatment.

Diana M Rydberg, Lennart Holm, Stefan Mejyr, Desirée Loikas, Karin Schenck-Gustafsson, Mia von Euler, Björn Wettermark, Rickard E Malmström

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In one paragraph

Article in European journal of clinical pharmacology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
0.2field-weighted citation impact, top 38% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Review
  4. Use ofPeerJ · 2024
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  5. Observational
  6. Review
  7. Review
  8. Article
  9. Article
  10. Influence of Sex on Platelet Reactivity in Response to Aspirin.Journal of the American Heart Association · 2020
    Article
  11. Article
  12. 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

8 authors at 3 institutions in 1 country.

Diana M RydbergClinical Pharmacology, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden, diana.rydberg@ki.se.
Lennart Holm
Stefan Mejyr
Desirée Loikas
Karin Schenck-Gustafsson
Mia von Euler
Björn Wettermark
Rickard E Malmström
Karolinska University Hospital · SEKarolinska Institutet · SEStockholm County Council · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo explore if sex differences are found in spontaneously reported adverse events for clopidogrel, low-dose aspirin and warfarin treatment in routine care.

methodsA cross-sectional analysis combining data on bleeding events from the Swedish Spontaneous Adverse Drug Event Reporting System (SWEDIS) with data from the National Prescribed Drug register. Bleeding event reports from 1999 to 2010 and 2005 to 2010 were adjusted to the number of prescriptions and the number of exposed patients respectively among women and men. Co-medication and co-prescription were analysed.

resultsMore men were dispensed clopidogrel although the reported bleeding event risk after adjustment for number of patients exposed was higher in women (RR 1.40; 95 % CI, 1.00-1.96). The difference disappeared when adjusting for the number of prescriptions (RR 0.99; 95 % CI, 0.71-1.39). The reported bleeding event risk with low-dose aspirin was lower in women, adjusted for patients exposed (RR 0.80; 95 % CI, 0.66-0.97). For warfarin, no sex difference in bleeding event reports could be found (RR 1.01; 95 % CI, 0.87-1.17).

conclusionsThis ecological comparison of bleeding reports and dispensed prescriptions showed a signal towards a higher prevalence of bleeding reports in women on clopidogrel treatment while the opposite was found for low-dose aspirin. For warfarin, no significant sex difference was seen regarding bleeding event reports, suggesting individualised dosing being an important factor. Men were more commonly prescribed antithrombotic combinations, and this was reflected by a larger proportion of bleeding reports including more than one antithrombotic agent.

Indexed as

AdolescentAdultAdverse Drug Reaction Reporting SystemsAgedAspirinChildChild, PreschoolClopidogrelDrug-Related Side Effects and Adverse ReactionsFemaleFibrinolytic AgentsHemorrhageHumansInfantInfant, NewbornMaleAspirinClopidogrelFibrinolytic AgentsTiclopidineWarfarin

Identifiers

PMID24096684
OpenAlexW2056859002

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.