Evidence map›Paper›PMID 39938934›Full record

ArticleBMJ (Clinical research ed.)2025

Stroke and myocardial infarction with contemporary hormonal contraception: real-world, nationwide, prospective cohort study.

Harman Yonis, Ellen Løkkegaard, Kristian Kragholm, Christopher B Granger, Amalie Lykkemark Møller, Lina Steinrud Mørch, Christian Torp-Pedersen, Amani Meaidi

Abstract read
In one paragraph

Article in BMJ (Clinical research ed.), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

17 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  3. An integrated investigation of systemic and localized pathophysiological mechanisms of stroke and multimodal therapeutic strategies.Zhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences · 2026
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  5. Ischemic stroke due to non-atherosclerotic aortic mural thrombus associated with iron deficiency anemia successfully treated with surgery.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2026
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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

8 authors.

Harman YonisDepartment of Cardiology, Nordsjaellands Hospital, Hilleroed, Denmark harman@live.dk.ORCID 0000-0003-1711-7726
Ellen LøkkegaardDepartment of Gynecology, Nordsjaellands Hospital, Hilleroed, Denmark.ORCID 0000-0003-4149-5663
Kristian KragholmDepartment of Cardiology, Aalborg University Hospital, Aalborg, Denmark.ORCID 0000-0001-9629-8670
Christopher B GrangerDuke Clinical Research Institute, Durham, NC, USA.ORCID 0000-0002-0045-3291
Amalie Lykkemark MøllerDepartment of Public Health, University of Copenhagen, Copenhagen, Denmark.ORCID 0000-0003-2952-2809
Lina Steinrud MørchCancer and Medicine, The Danish Cancer Institute, Copenhagen, Denmark.ORCID 0000-0001-6506-2569
Christian Torp-PedersenDepartment of Cardiology, Nordsjaellands Hospital, Hilleroed, Denmark.ORCID 0000-0003-2892-6131
Amani MeaidiDepartment of Cardiology, Nordsjaellands Hospital, Hilleroed, Denmark.ORCID 0000-0003-4549-8271

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo evaluate the association between contemporary hormonal contraceptive use and the risk of incident ischaemic stroke and myocardial infarction.

designReal-world, nationwide, prospective cohort study.

settingDenmark, by use of national registries.

participantsAll women aged 15-49 years residing in Denmark between 1996 and 2021, with no history of arterial or venous thrombosis, antipsychotics use, cancer, thrombophilia, liver disease, kidney disease, polycystic ovary syndrome, endometriosis, infertility treatment, hormone therapy use, oophorectomy, and hysterectomy.

main outcome measuresFirst time diagnosis of ischaemic stroke or myocardial infarction at discharge.

resultsAmong 2 025 691 women followed up for 22 209 697 person years, 4730 ischaemic strokes and 2072 myocardial infarctions occurred. Standardised ischaemic stroke rate per 100 000 person years were 18 (95% confidence interval 18 to 19) for no use, 39 (36 to 42) for combined oral contraception, 33 (25 to 44) for progestin-only pills, and 23 (17 to 29) for intrauterine device. Standardised myocardial infarction rate per 100 000 person years were 8 (8 to 9) for no use, 18 (16 to 20) for combined oral contraception, 13 (8 to 19) for progestin-only pills, and 11 (7 to 16) for intrauterine device. Compared with no use, current use of combined oral contraception was associated with an adjusted rate ratio of 2.0 (1.9 to 2.2) for ischaemic stroke and 2.0 (1.7 to 2.2) for myocardial infarction. These corresponded to standardised rate differences of 21 (18 to 24) extra ischaemic strokes and 10 (7 to 12) extra myocardial infarctions per 100 000 person years. Compared with no use, current use of progestin-only pills was associated with an adjusted rate ratio of 1.6 (95% CI 1.3 to 2.0) for ischaemic stroke and 1.5 (1.1 to 2.1) for myocardial infarction, equating to 15 (6 to 24) extra ischaemic strokes and four (-1 to 9) extra myocardial infarctions per 100 000 person years. Increased arterial thrombotic risk was also observed with use of the combined vaginal ring (adjusted incidence rate ratio of 2.4 (1.5 to 3.7) for ischaemic stroke and 3.8 (2.0 to 7.3) for myocardial infarction), patch (3.4 (1.3 to 9.1) and no myocardial infarctions), and progestin-only implant (2.1 (1.2 to 3.8) and ≤3 myocardial infarctions), whereas no increased risk was observed with progestin-only intrauterine device (1.1 (1.0 to 1.3) for ischaemic stroke and 1.1 (0.9 to 1.3) for myocardial infarction).

conclusionsUse of contemporary oestrogen-progestin and progestin-only contraceptives was associated with an increased risk of ischaemic stroke and, in some cases, myocardial infarction except for the levonorgestrel-releasing intrauterine device, which was not associated with either. Although absolute risks were low, clinicians should include the potential risk of arterial thrombosis in their assessment of the benefits and risks when prescribing a hormonal contraceptive method.

Indexed as

Hormonal ContraceptionIschemic StrokeMyocardial InfarctionStrokeAdolescentAdultDenmarkFemaleHumansIncidenceMiddle AgedProspective StudiesRegistriesRisk FactorsYoung Adult

Identifiers

PMID39938934
PMCPMC11816856

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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.