Evidence map›Paper›PMID 33338639›Full record

SynthesisInfection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases2021

Ethnic and age-specific acute lung injury/acute respiratory distress syndrome risk associated with angiotensin-converting enzyme insertion/deletion polymorphisms, implications for COVID-19: A meta-analysis.

Noel Pabalan, Phuntila Tharabenjasin, Panan Suntornsaratoon, Hamdi Jarjanazi, Chatchai Muanprasat

Open access · greenAbstract readMeta-Analysis
In one paragraph

Synthesis in Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 2 pooled it
2.8field-weighted citation impact, top 7% 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

16 citing papers in PubMed, 2 syntheses or guidelines pooled it, 24 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Genetic associations in sepsis and ARDS.Frontiers in pharmacology · 2026
    Review
  4. The I/D variant of theFuture science OA · 2025
    Article
  5. Article
  6. Review
  7. Review
  8. Article
  9. Article
  10. Frontiers in immunology · 2022
    Article
  11. Review
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  13. Genes · 2021
    Review
  14. Review
  15. The Impact ofIn vivo (Athens, Greece)
    Review
  16. 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

5 authors at 4 institutions in 2 countries.

Noel PabalanChulabhorn International College of Medicine, Thammasat University, Pathum Thani, Thailand. Electronic address: noelpabalan@mail.com.
Phuntila TharabenjasinChulabhorn International College of Medicine, Thammasat University, Pathum Thani, Thailand.
Panan SuntornsaratoonCenter of Calcium and Bone Research (COCAB), Faculty of Science, Mahidol University, Bangkok 10400, Thailand; Department of Physiology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand.
Hamdi JarjanaziEnvironmental Monitoring and Reporting Branch, Ontario Ministry of the Environment, Conservation and Parks, 125 Resources Road, Toronto, Ontario, Canada.
Chatchai MuanprasatChakri Naruebodindra Medical Institute, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bang Pla, Bang Phli, Samut Prakan 10540, Thailand.
Thammasat University · THMahidol University · THMinistry of the Environment, Conservation and Parks · CARamathibodi Hospital · TH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe reported association between an insertion/deletion (I/D) polymorphism in the angiotensin-converting enzyme (ACE) gene and the risk for acute lung injury (ALI)/acute respiratory distress syndrome (ARDS) remains controversial despite the publication of four meta-analyses on this topic. Here, we updated the meta-analysis with more studies and additional assessments that include adults and children within the context of the coronavirus disease 2019 (COVID-19) pandemic.

methodsSixteen articles (22 studies) were included. Odds ratios (ORs) and 95% confidence intervals (CIs) were estimated using three genetic models (allele, recessive and dominant), in which ARDS patients were compared with non-ARDS patients (A1) and healthy controls (A2). Mortality outcomes were also assessed (A3). The influence of covariates was examined by meta-regression. Bonferroni correction was performed for multiple pooled associations. Subgroup analyses based on ethnicity (Asians, Caucasians) and life stage (adults, children) were conducted. Heterogeneity was addressed with outlier treatment.

resultsThis meta-analysis generated 68 comparisons, 21 of which were significant. Of the 21, four A1 and three A3 highly significant (P

conclusionsSignificant associations of the ACE I/D polymorphism with the risk of ALI/ARDS were indicated in Caucasians and children as well as in Asians in mortality analysis. These findings were underpinned by high significance, high statistical power and robustness. ACE genotypes may be useful for ALI/ARDS therapy for patients with COVID-19.

Indexed as

Genetic Predisposition to DiseaseINDEL MutationAcute Lung InjuryAdultAge FactorsAllelesAngiotensin-Converting Enzyme 2Asian PeopleCase-Control StudiesChildCOVID-19Gene FrequencyHumansRespiratory Distress SyndromeSARS-CoV-2Survival AnalysisACE2 protein, humanAngiotensin-Converting Enzyme 2ACEALI/ARDSI/D polymorphismMeta-analysis

Identifiers

PMID33338639
PMCPMC7738939
OpenAlexW3111143927

What OpenQuestion holds

Textmetadata
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.