Evidence map›Paper›PMID 32873621›Full record

ArticleBMJ open2020

Constipation and risk of cardiovascular diseases: a Danish population-based matched cohort study.

Jens Sundbøll, Szimonetta Komjáthiné Szépligeti, Kasper Adelborg, Péter Szentkúti, Hans Gregersen, Henrik Toft Sørensen

Open access · goldAbstract read
In one paragraph

Article in BMJ open, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 3 pooled it
3.8field-weighted citation impact, top 6% 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

36 citing papers in PubMed, 3 syntheses or guidelines pooled it, 61 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Evaluating the Effect ofNutrients · 2024
    Trial
  5. Article
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  10. Forensic considerations in cases of fatal constipation.Forensic science, medicine, and pathology · 2025
    Review
  11. Article
  12. The inseparable relationship between constipation and blood pressure.Hypertension research : official journal of the Japanese Society of Hypertension · 2025
    Article
  13. Article
  14. Review
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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

6 authors at 2 institutions in 2 countries.

Jens SundbøllDepartment of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark jens.sundboll@clin.au.dk.ORCID 0000-0002-1276-1419
Szimonetta Komjáthiné SzépligetiDepartment of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark.
Kasper AdelborgDepartment of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark.ORCID 0000-0001-5639-7252
Péter SzentkútiDepartment of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark.
Hans GregersenGIOME, Department of Surgery, Chinese University of Hong Kong, Shatin, Hong Kong.
Henrik Toft SørensenDepartment of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark.
Aarhus University Hospital · DKChinese University of Hong Kong · HK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo assess the risks of myocardial infarction, stroke, peripheral artery disease, venous thromboembolism, atrial fibrillation or atrial flutter and heart failure in patients with constipation compared with a general population cohort.

designPopulation-based matched cohort study.

settingAll Danish hospitals and hospital outpatient clinics from 2004 to 2013.

participantsPatients with a constipation diagnosis matched on age, sex and calendar year to 10 individuals without constipation from the general population. MAIN OUTCOMES MEASURES: Comorbidity-adjusted and medication-adjusted hazard ratios (aHRs) for cardiovascular outcomes based on Cox regression analysis.

results83 239 patients with constipation were matched to 832 384 individuals without constipation. The median age at constipation diagnosis was 46.5% and 41% were men. Constipation was strongly associated with venous thromboembolism (aHR 2.04, 95% CI 1.89 to 2.20), especially splanchnic venous thrombosis (4.23, 95% CI 2.45 to 7.31). Constipation was also associated with arterial events, including myocardial infarction (1.24, 95% CI 1.14 to 1.35), ischaemic stroke (1.50, 95% CI 1.41 to 1.60), haemorrhagic stroke (1.46, 95% CI 1.26 to 1.69), peripheral artery disease (1.34, 95% CI 1.20 to 1.50), atrial fibrillation or atrial flutter (1.27, 95% CI 1.20 to 1.34) and heart failure (1.52, 95% CI 1.42 to 1.62). The associations were strongest during the first year after the constipation diagnosis and strengthened with an increased number of laxative prescriptions.

conclusionsConstipation was associated with an increased risk of several cardiovascular diseases, in particular venous thromboembolism.

Indexed as

Atrial FibrillationBrain IschemiaCardiovascular DiseasesStrokeCohort StudiesConstipationDenmarkFemaleHumansMaleRisk Factorscardiac epidemiologycardiologygastroenterology

Identifiers

PMID32873621
PMCPMC7473662
OpenAlexW3082186968

What OpenQuestion holds

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Registered trials

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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.