Evidence map›Paper›PMID 20736268›Full record

ArticleBMJ (Clinical research ed.)2010

Migraine and risk of haemorrhagic stroke in women: prospective cohort study.

Tobias Kurth, Carlos S Kase, Markus Schürks, Christophe Tzourio, Julie E Buring

Open access · hybridAbstract readComparative Study
In one paragraph

Article in BMJ (Clinical research ed.), 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers, 7 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed, 7 pooled it
6.5field-weighted citation impact, top 3% 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

46 citing papers in PubMed, 7 syntheses or guidelines pooled it, 117 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Migraine and the risk of stroke: an updated meta-analysis of prospective cohort studies.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2017
    Pooled it
  6. Guideline
  7. Migraine and mortality: a systematic review and meta-analysis.Cephalalgia : an international journal of headache · 2011
    Pooled it
  8. Trial
  9. Article
  10. Article
  11. Migraine and Stroke: A Scoping Review.Journal of clinical medicine · 2024
    Article
  12. Article
  13. Article
  14. Review
  15. Hypertension and Migraine: Time to Revisit the Evidence.Current pain and headache reports · 2021
    Review
  16. Observational
  17. Migraine and risk of stroke.Journal of neurology, neurosurgery, and psychiatry · 2020
    Review
  18. Article
  19. Cortical Spreading Depression Closes Paravascular Space and Impairs Glymphatic Flow: Implications for Migraine Headache.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2017
    Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 4 institutions in 2 countries.

Tobias KurthDivision of Preventive Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA. tkurth@rics.bwh.harvard.edu
Carlos S Kase
Markus Schürks
Christophe Tzourio
Julie E Buring
Harvard University · USBoston University · USBrigham and Women's Hospital · USInserm · FR

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
Women's Health Study: Continued Follow-UpR01HL080467 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI BURING, JULIE E. · 2005 to 2010
$4.5M
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 CA-47988NCI NIH HHS R01 CA047988NHLBI NIH HHS HL-043851NHLBI NIH HHS HL-080467NHLBI NIH HHS R01 HL080467
6 · The paper itself

Abstract

objectivesTo examine the association between migraine and migraine aura status with risk of haemorrhagic stroke.

designProspective cohort study.

settingWomen's Health Study, United States.

participants27,860 women aged >or=45 who were free from stroke or other major disease at baseline and had provided information on self reported migraine, aura status, and lipid values.

main outcome measuresTime to first haemorrhagic stroke and subtypes of haemorrhagic stroke.

resultsAt baseline, 5130 (18%) women reported any history of migraine; of the 3612 with active migraine (migraine in the previous year), 1435 (40%) described having aura. During a mean of 13.6 years of follow-up, 85 haemorrhagic strokes were confirmed after review of medical records. Compared with women without a history of migraine, there was no increased risk of haemorrhagic stroke in those who reported any history of migraine (adjusted hazard ratio 0.98, 95% confidence interval 0.56 to 1.71, P=0.93). In contrast, risk was increased in women with active migraine with aura (2.25, 1.11 to 4.54, P=0.024). The age adjusted increased risk was stronger for intracerebral haemorrhage (2.78, 1.09 to 7.07, P=0.032) and for fatal events (3.56, 1.23 to 10.31, P=0.02). Four additional haemorrhagic stroke events were attributable to migraine with aura per 10 000 women per year. Women who reported active migraine without aura had no increased risk for haemorrhagic stroke.

conclusionMigraine with aura might, in addition to ischaemic events, also be a risk factor for haemorrhagic stroke. The relatively low number of events and attributable risk should caution against definitive conclusions and call for further confirmation of these observations.

Indexed as

AgedAge DistributionCholesterolEpidemiologic MethodsFemaleHumansIntracranial HemorrhagesMiddle AgedMigraine with AuraStrokeCholesterol

Identifiers

PMID20736268
PMCPMC2927695
OpenAlexW1966937190

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.