Evidence map›Paper›PMID 23857694›Full record

SynthesisJornal brasileiro de pneumologia : publicacao oficial da Sociedade Brasileira de Pneumologia e Tisilogia

Exacerbations of COPD and symptoms of gastroesophageal reflux: a systematic review and meta-analysis.

Thiago Mamôru Sakae, Márcia Margaret Menezes Pizzichini, Paulo José Zimermann Teixeira, Rosemeri Maurici da Silva, Daisson José Trevisol, Emilio Pizzichini

Open access · diamondAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Jornal brasileiro de pneumologia : publicacao oficial da Sociedade Brasileira de Pneumologia e Tisilogia. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 3 pooled it
4.5field-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

29 citing papers in PubMed, 3 syntheses or guidelines pooled it, 60 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Trial
  5. Article
  6. Article
  7. Article
  8. Article
  9. Observational
  10. Review
  11. Article
  12. Management of the COPD Patient with Comorbidities: An Experts Recommendation Document.International journal of chronic obstructive pulmonary disease · 2020
    Article
  13. Prediction of first acute exacerbation using COPD subtypes identified by cluster analysis.International journal of chronic obstructive pulmonary disease · 2019
    Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Observational
  20. Observational
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 3 institutions in 2 countries.

Thiago Mamôru SakaeGraduate Program in Medical Sciences, Federal University of Santa Catarina, Florianópolis, Brazil.
Márcia Margaret Menezes Pizzichini
Paulo José Zimermann Teixeira
Rosemeri Maurici da Silva
Daisson José Trevisol
Emilio Pizzichini
Universidade Federal de Santa Catarina · BRUniversidade do Sul de Santa Catarina · BRUniversity of Health Sciences

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo examine the relationship between gastroesophageal reflux (GER) and COPD exacerbations.

methodsWe conducted a systematic search of various electronic databases for articles published up through December of 2012. Studies considered eligible for inclusion were those dealing with COPD, COPD exacerbations, and GER; comparing at least two groups (COPD vs. controls or GER vs. controls); and describing relative risks (RRs) and prevalence ratios-or ORs and their respective 95% CIs (or presenting enough data to allow further calculations) for the association between GER and COPD-as well as exacerbation rates. Using a standardized form, we extracted data related to the study design; criteria for GER diagnosis; age, gender, and number of participants; randomization method; severity scores; methods of evaluating GER symptoms; criteria for defining exacerbations; exacerbation rates (hospitalizations, ER visits, unscheduled clinic visits, prednisone use, and antibiotic use); GER symptoms in COPD group vs. controls; mean number of COPD exacerbations (with symptoms vs. without symptoms); annual frequency of exacerbations; GER treatment; and severity of airflow obstruction.

resultsOverall, GER was clearly identified as a risk factor for COPD exacerbations (RR = 7.57; 95% CI: 3.84-14.94), with an increased mean number of exacerbations per year (mean difference: 0.79; 95% CI: 0.22-1.36). The prevalence of GER was significantly higher in patients with COPD than in those without (RR = 13.06; 95% CI: 3.64-46.87; p < 0.001).

conclusionsGER is a risk factor for COPD exacerbations. The role of GER in COPD management should be studied in greater detail.

Indexed as

Disease ProgressionFemaleGastroesophageal RefluxHumansMaleMiddle AgedPulmonary Disease, Chronic ObstructiveRetrospective StudiesRisk Factors

Identifiers

PMID23857694
PMCPMC4075854
OpenAlexW1564822787

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.