Evidence map›Paper›PMID 35210766›Full record

SynthesisInternational journal of chronic obstructive pulmonary disease

Long-Term Risk of Mortality Associated with Isolation of

Miguel Angel Martinez-García, David Rigau, Miriam Barrecheguren, Alberto García-Ortega, Alexa Nuñez, Grace Oscullo Yepez, Marc Miravitlles

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in International journal of chronic obstructive pulmonary disease. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
4.7field-weighted citation impact, top 4% 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

20 citing papers in PubMed, 1 synthesis or guideline pooled it, 32 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Review
  4. Review
  5. Observational
  6. Bronchial and Systemic Relationships ofInternational journal of molecular sciences · 2026
    Article
  7. Article
  8. Clinical Implications ofChronic obstructive pulmonary diseases (Miami, Fla.) · 2025
    Article
  9. Observational
  10. Review
  11. COPD and Immune Checkpoint Inhibitors for Cancer: A Literature Review.International journal of chronic obstructive pulmonary disease · 2024
    Review
  12. Article
  13. Human airway epithelium controlsFrontiers in immunology · 2024
    Article
  14. Isolation ofJournal of clinical medicine · 2023
    Article
  15. Rational use of inhaled corticosteroids for the treatment of COPD.NPJ primary care respiratory medicine · 2023
    Review
  16. Review
  17. The Impact of Chronic Bronchial Infection in COPD: A Proposal for Management.International journal of chronic obstructive pulmonary disease · 2022
    Review
  18. Review
  19. Stepwise management of COPD: What is next after bronchodilation?Therapeutic advances in respiratory disease
    Review
  20. 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

7 authors at 2 institutions in 1 country.

Miguel Angel Martinez-GarcíaPneumology Department, Hospital Universitario y Politécnico La Fe, Valencia, Spain.ORCID 0000-0002-7321-1891
David RigauBiomedical Research Institute Sant Pau (IIB Sant Pau), Barcelona, Spain.
Miriam BarrechegurenCIBER de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain.
Alberto García-OrtegaPneumology Department, Hospital Universitario y Politécnico La Fe, Valencia, Spain.
Alexa NuñezCIBER de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain.ORCID 0000-0003-4067-0466
Grace Oscullo YepezPneumology Department, Hospital Universitario y Politécnico La Fe, Valencia, Spain.ORCID 0000-0002-2121-7554
Marc MiravitllesCIBER de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain.ORCID 0000-0002-9850-9520
Instituto de Salud Carlos III · ESHospital Universitari i Politècnic La Fe · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundChronic bronchial infection is frequent in chronic obstructive pulmonary disease (COPD), but the impact of the isolation of pathogenic bacteria, and in particular

methodsWe conducted a systematic review of prognostic studies including patients with isolation of PA in sputum in stable state or during exacerbations of COPD. The main outcomes were all-cause mortality, respiratory mortality, and number and severity of future exacerbations. Data were expressed as hazard ratio (HR) (95% confidence interval [CI]) whenever possible.

resultsOf 2773 studies, eight were finally included (23,228 individuals). The mean age ranged from 65.5 to 73 years. Six studies reported data for all-cause mortality. The adjusted risk of death was almost double in patients with PA isolation (HR 1.95, 95% CI, 1.34 to 2.84; quality of evidence moderate). Patients with PA isolation showed a three times higher adjusted risk of readmission at 30 days after discharge (OR 3.60, 95% CI, 3.60 to 12.03, 1 study; quality of evidence very low), and more than double adjusted risk of death and hospitalization at two years (HR 2.80, 95% CI, 2.20 to 3.56, 1 study; quality of evidence very low).

conclusionThere is moderate certainty that the isolation of PA in sputum is associated with an adjusted increased risk of death in patients with COPD.

Indexed as

Bronchitis, ChronicPulmonary Disease, Chronic ObstructiveAgedDisease ProgressionHumansPseudomonas aeruginosaQuality of Lifebronchial colonizationbronchial infectionCOPDexacerbationsmortalityoutcomesprognosis

Identifiers

PMID35210766
PMCPMC8858763
OpenAlexW4213208700

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.