Evidence map›Paper›PMID 34660734›Full record

SynthesisFrontiers in cardiovascular medicine2021

Association of Chronic Obstructive Pulmonary Disease With Arrhythmia Risks: A Systematic Review and Meta-Analysis.

Xin Liu, Zhuohui Chen, Siyuan Li, Shuo Xu

Open access · goldAbstract readSystematic Review
PubMed Full text at PMC Publisher
In one paragraph

Synthesis in Frontiers in cardiovascular medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 3 pooled it
1.8field-weighted citation impact, top 14% 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

18 citing papers in PubMed, 3 syntheses or guidelines pooled it, 27 citations in OpenAlex.

  1. Physiological signal entropy in patients with chronic respiratory disease: a systematic review.European respiratory review : an official journal of the European Respiratory Society · 2025
    Pooled it
  2. Pooled it
  3. Pooled it
  4. Article
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  7. A Proposed Checklist for Optimizing COPD Patient Discharge Processes in Italian Internal Medicine Wards.International journal of chronic obstructive pulmonary disease · 2026
    Review
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  9. Article
  10. Review
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  12. Observational
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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

4 authors at 3 institutions in 1 country.

Xin LiuDepartment of Critical Care Medicine, The First Affiliated Hospital of Gannan Medical University, Ganzhou, China.
Zhuohui ChenSecond Clinical Medical College, Nanchang University, Nanchang, China.
Siyuan LiSecond Clinical Medical College, Nanchang University, Nanchang, China.
Shuo XuDepartment of Pulmonary and Critical Care Medicine, The Ganzhou People's Hospital, Ganzhou, China.
Second Affiliated Hospital of Nanchang University · CNFirst Affiliated Hospital of Gannan Medical University · CNGanzhou People's Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

PubMed holds no abstract for this paper.

Indexed as

arrhythmiaatrial fibrillationchronic obstructive pulmonary disease (COPD)meta-analysisrisk factor

Identifiers

PMID34660734
PMCPMC8514787
OpenAlexW3201903300

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.