Evidence map›Paper›PMID 21673005›Full record

Trial reportCephalalgia : an international journal of headache2011

Migraine and cardiovascular disease in women and the role of aspirin: subgroup analyses in the Women's Health Study.

Tobias Kurth, Hans-Christoph Diener, Julie E Buring

Open access · greenAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Cephalalgia : an international journal of headache, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 3 pooled it
3.3field-weighted citation impact, top 8% 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, 3 syntheses or guidelines pooled it, 44 citations in OpenAlex.

  1. Pooled it
  2. A systematic review of aspirin in primary prevention: is it time for a new approach?American journal of cardiovascular drugs : drugs, devices, and other interventions · 2015
    Pooled it
  3. Guideline
  4. Review
  5. Pediatric Episodic Migraine with Aura: A Unique Entity?Children (Basel, Switzerland) · 2021
    Review
  6. The Potential Protective Role of Aspirin Against Migraine in Pregnant Women.Medical science monitor : international medical journal of experimental and clinical research · 2020
    Review
  7. Co-occurrence of pain syndromes.Journal of neural transmission (Vienna, Austria : 1996) · 2020
    Review
  8. Review
  9. Review
  10. Review
  11. Review
  12. 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

3 authors at 2 institutions in 3 countries.

Tobias KurthBrigham and Women's Hospital, USA. tkurth@rics.bwh.harvard.edu
Hans-Christoph Diener
Julie E Buring
Brigham and Women's Hospital · USEssen University Hospital · DE

Funding

Women's Health Study: Continued Follow-upR01CA047988 · NCI · BRIGHAM AND WOMEN'S HOSPITAL · PI BURING, JULIE E., LEE, I-MIN · 1991 to 2014
$28.2M
TRIAL OF VITAMIN E, BETA-CAROTENE &ASPRIN IN WOMENR01HL043851 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI BURING, JULIE E · 1991 to 2000
$1.6M
NCI NIH HHS R01 CA047988NHLBI NIH HHS R01 HL043851
6 · The paper itself

Abstract

backgroundMigraine with aura (MA) has been associated with increased risk of cardiovascular disease (CVD). The role of aspirin on this association remains unclear.

methodsPost-hoc subgroup analyses of the Women's Health Study, a randomized trial testing 100 mg aspirin on alternate days in primary prevention of CVD among 39,876 women aged ≥ 45.

resultsDuring 10 years, 998 major CVD events were confirmed in 39,757 women with complete migraine information. Aspirin reduced risk of ischaemic stroke (relative risk, RR, 0.76, 95% CI 0.63-0.93) but not other CVD. Migraine or MA did not modify the effect of aspirin on CVD except for myocardial infarction (MI) (p for interaction = 0.01). Women with MA on aspirin had increased risk of MI (RR 3.72, 95% CI 1.39-9.95). Further exploratory analyses indicate that this increased risk is only apparent among women with MA on aspirin who ever smoked or had history of hypertension (p for interaction<0.01).

conclusionsIn post-hoc subgroup analyses, aspirin had similar protective effects on ischaemic stroke for women with or without migraine. By contrast, our data suggest that women with MA on aspirin had increased risk of MI. The small number of outcome events in subgroups, the exploratory nature of our analyses, and lack of plausible mechanisms raise the possibility of a chance finding, which must caution the interpretation.

Indexed as

Anti-Inflammatory Agents, Non-SteroidalAspirinCardiovascular DiseasesFemaleHumansMiddle AgedMigraine with AuraPrimary PreventionRisk FactorsAnti-Inflammatory Agents, Non-SteroidalAspirin

Identifiers

PMID21673005
PMCPMC3143294
OpenAlexW2142718441

What OpenQuestion holds

Textmetadata
LicenceTDM
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.