Evidence map›Paper›PMID 15640250›Full record

SynthesisBMJ (Clinical research ed.)2005

Association between hormone replacement therapy and subsequent stroke: a meta-analysis.

Philip M W Bath, Laura J Gray

Open access · bronzeAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in BMJ (Clinical research ed.), 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed, 6 pooled it
20.6field-weighted citation impact, top 1% 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

52 citing papers in PubMed, 6 syntheses or guidelines pooled it, 236 citations in OpenAlex.

  1. Pooled it
  2. Long-term hormone therapy for perimenopausal and postmenopausal women.The Cochrane database of systematic reviews · 2017
    Pooled it
  3. Pooled it
  4. Menopausal symptoms.BMJ clinical evidence · 2011
    Pooled it
  5. Menopausal symptoms.BMJ clinical evidence · 2010
    Pooled it
  6. Pooled it
  7. Trial
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Hypertension in Women Across the Lifespan.Current atherosclerosis reports · 2021
    Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Review
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

2 authors at 1 institution in 1 country.

Philip M W BathDivision of Stroke Medicine, Institute of Neuroscience, Queen's Medical Centre, University of Nottingham, Nottingham NG7 2UH. philip.bath@nottingham.ac.uk
Laura J Gray
University of Nottingham · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo review completed trials assessing effect of hormone replacement therapy on subsequent risk of stroke, assessing stroke by pathological type, severity, and outcome.

designSystematic review of randomised controlled trials identified from the Cochrane Library, Embase, and Medline; reviews; and reference lists of relevant papers. STUDIES REVIEWED: 28 trials, with 39 769 subjects, were identified. REVIEW MEASURES: Rates for cerebrovascular events analysed with a random effects model. Sensitivity analyses for heterogeneity included phase of prevention (primary or secondary), type of hormone replacement therapy (oestrogen alone or combined with progesterone), type of oestrogen (estradiol or conjugated equine oestrogen), size of trial (< 5000 or > 5000 patients), length of follow up ( pound 3 years or > 3 years), sex (women only or men only), and trial quality (high or low).

resultsHormone replacement therapy was associated with significant increases in total stroke (odds ratio 1.29 (95% confidence interval 1.13 to 1.47), n = 28), non-fatal stroke (1.23 (1.06 to 1.44), n = 21), stroke leading to death or disability (1.56 (1.11 to 2.20), n = 14), ischaemic stroke (1.29 (1.06 to 1.56), n = 16), and a trend to more fatal stroke (1.28 (0.87 to 1.88), n = 22). It was not associated with haemorrhagic stroke (1.07 (0.65 to 1.75), n = 17) or transient ischaemic attack (1.02 (0.78 to 1.34), n = 22). Statistical heterogeneity was not present in any analysis.

conclusionsHormone replacement therapy was associated with an increased risk of stroke, particularly of ischaemic type. Among subjects who had a stroke, those taking hormone replacement therapy seemed to have a worse outcome. Hormone replacement therapy cannot be recommended for the primary or secondary prevention of stroke.

Indexed as

AgedData CollectionFemaleHormone Replacement TherapyHumansMiddle AgedPostmenopausePrognosisRandomized Controlled Trials as TopicRisk FactorsStroke

Identifiers

PMID15640250
PMCPMC548730
OpenAlexW2003515483

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.