Evidence map›Paper›PMID 40982729›Full record

SynthesisAnnals of medicine2025

Association between constipation and risk of cardiovascular or all-cause mortality: a meta-analysis.

Bing Liu, Xinyue Wu, Yuxin Wang, Xinhua Hu

Abstract readMeta-Analysis
In one paragraph

Synthesis in Annals of medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–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

2 citing papers in PubMed.

  1. Article
  2. Frontiers in pharmacology · 2025
    Article
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

4 authors.

Bing LiuDepartment of Anorectal Surgery, The First Affiliated Hospital of China Medical University, Shenyang, China.
Xinyue WuDepartment of Vascular and Thyroid Surgery, The First Affiliated Hospital of China Medical University, Shenyang, China.
Yuxin WangDepartment of Vascular and Thyroid Surgery, The First Affiliated Hospital of China Medical University, Shenyang, China.
Xinhua HuDepartment of Vascular and Thyroid Surgery, The First Affiliated Hospital of China Medical University, Shenyang, China.ORCID 0000-0001-6327-9465

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundConstipation, characterized by infrequent bowel movements or difficulty with defecation, is a common gastrointestinal disorder. This meta-analysis aimed to evaluate the association between constipation and the risks of cardiovascular and all-cause mortality.

methodsA systematic search of PubMed, Embase and Web of Science was conducted through 6 August 2025, to identify longitudinal observational studies examining the association between constipation and mortality. Pooled adjusted hazard ratios (HR) with 95% confidence intervals (CI) were calculated using random-effects models to account for substantial clinical heterogeneity in constipation definitions across studies.

resultsThirteen studies (14 articles) involving 3,710,453 participants were included. Pooled analyses revealed a significant association between constipation and all-cause mortality across different populations: a HR of 1.10 (95% CI 1.02-1.19) for the general population, 1.40 (95% CI 1.16-4.68) for patients with chronic kidney disease (CKD), and 1.85 (95% CI 1.28-2.67) for patients with heart failure. Conversely, no significant associations were observed for cardiovascular mortality in either the general population (HR 1.19; 95% CI 0.99-1.45) or CKD patients (HR 1.33; 95% CI 0.83-2.13).

conclusionsConstipation is independently associated with an increased risk of all-cause mortality, particularly in patients with chronic conditions such as CKD and heart failure. However, standardized measurement protocols and validation across diverse cohorts are necessary to clarify its prognostic significance.

Indexed as

Cardiovascular DiseasesConstipationCause of DeathHeart FailureHumansObservational Studies as TopicRenal Insufficiency, ChronicRisk Factorsall-cause mortalitycardiovascular mortalitychronic kidney diseaseConstipationheart failuremeta-analysis

Identifiers

PMID40982729
PMCPMC12456042

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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.