Evidence map›Paper›PMID 40210792›Full record

ArticleInternational journal of colorectal disease2025

The bidirectional association between hemorrhoidal disease and varicose veins: a nationwide population-based cohort study.

Meng-Lin Lee, Yi-Wei Kao, Yu-Ting Yang, Ming-Chih Chen, Ben-Chang Shia, Shih-Yu Huang, Pei-Shyuan Lee, Thay-Hsiung Chen, Yan-Jiun Huang, Wei-Che Chiu

Abstract read
In one paragraph

Article in International journal of colorectal disease, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. 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

10 authors.

Meng-Lin LeeDivision of Cardiovascular Surgery, Department of Surgery, Cathay General Hospital, Taipei, 10630, Taiwan.ORCID http://orcid.org/0000-0002-0707-5967
Yi-Wei KaoDepartment of Applied Statistics and Information Science, Ming Chuan University, Taoyuan City, 33348, Taiwan.ORCID http://orcid.org/0000-0002-7891-9514
Yu-Ting YangArtificial Intelligence Development Center, Fu Jen Catholic University, New Taipei City, 24205, Taiwan.
Ming-Chih ChenArtificial Intelligence Development Center, Fu Jen Catholic University, New Taipei City, 24205, Taiwan.
Ben-Chang ShiaArtificial Intelligence Development Center, Fu Jen Catholic University, New Taipei City, 24205, Taiwan.
Shih-Yu HuangDivision of Cardiac Electrophysiology, Department of Cardiovascular Center, Cathay General Hospital, Taipei, 10630, Taiwan.
Pei-Shyuan LeeDepartment of Family Medicine, Cathay General Hospital, Taipei, 10630, Taiwan.
Thay-Hsiung ChenDivision of Cardiovascular Surgery, Department of Surgery, Cathay General Hospital, Taipei, 10630, Taiwan.
Yan-Jiun Huang *Division of Colorectal Surgery, Department of Surgery, Taipei Medical University Hospital, Taipei, 11031, Taiwan. colorectalman@yahoo.com.tw.
Wei-Che Chiu *School of Medicine, Fu Jen Catholic University, New Taipei City, 24205, Taiwan. ppk11642@gmail.com.ORCID http://orcid.org/0000-0001-8549-1432

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeHemorrhoidal disease (HD) and varicose veins (VV) are both common diseases. The aim was to investigate the association between them.

methodsA nationwide cohort study was conducted using the Taiwan National Health Insurance Research Database (NHIRD) from 2005 to 2021, which included information of over 31 million beneficiaries. To assess the risk of developing VV among HD patients, records of 832,310 patients with HD diagnoses (the HD cohort) and those of propensity score-matched patients without HD diagnoses (the non-HD cohort) were identified and compared. Hazard ratios (HRs) and 95% confidence intervals (CIs) derived from the Cox proportional hazards model were used to estimate the association risks. Similarly, an opposite direction was approached using records of 112,027 patients with VV diagnoses (the VV cohort) to assess the risk of developing HD among VV patients.

resultsHD was associated with an increased risk of VV (adjusted HR, 1.52; 95% CI: 1.47-1.57). Similarly, VV were associated with an increased risk of HD (adjusted HR, 1.50; 95% CI: 1.45-1.55). The associations between the two diseases were evident in both sexes and all age groups. Patients with comorbid HD and VV had higher incidences of mitral valve regurgitation (P < 0.001), hernia (P < 0.001), varicocele (P = 0.008), and mortality (P = 0.006).

conclusionThis study revealed a significant bidirectional association between HD and VV. It is recommended that physicians be mindful of either condition in patients already diagnosed with the other, as their coexistence could imply the potential for additional associated connective tissue diseases and adverse long-term outcomes.

Indexed as

HemorrhoidsVaricose VeinsAdultAgedCohort StudiesFemaleHumansMaleMiddle AgedProportional Hazards ModelsRisk FactorsTaiwanYoung AdultHemorrhoidal diseaseMitral valve regurgitationNational health programsVaricose veins

Identifiers

PMID40210792
PMCPMC11985583

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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.