Evidence map›Paper›PMID 29670346›Full record

ArticleInternational journal of chronic obstructive pulmonary disease

Prediction of severe exacerbations and mortality in COPD: the role of exacerbation history and inspiratory capacity/total lung capacity ratio.

João Cardoso, Ricardo Coelho, Carla Rocha, Constança Coelho, Luísa Semedo, A Bugalho Almeida

Abstract read
In one paragraph

Article 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 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing 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

21 citing papers in PubMed.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. Observational
  6. MULTI-VIEW CNN FOR TOTAL LUNG VOLUME INFERENCE ON CARDIAC COMPUTED TOMOGRAPHY.Proceedings. IEEE International Symposium on Biomedical Imaging · 2023
    Article
  7. Article
  8. Review
  9. Article
  10. Future concepts in bronchodilation for COPD: dual-European respiratory review : an official journal of the European Respiratory Society · 2021
    Review
  11. Article
  12. Article
  13. Observational
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Treatable Traits in COPD - A Proposed Approach.International journal of chronic obstructive pulmonary disease
    Review
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

6 authors.

João CardosoDepartment of Respiratory Medicine, Hospital de Santa Marta, Centro Hospitalar Lisboa Central, Lisboa, Portugal.
Ricardo CoelhoDepartment of Respiratory Medicine, Hospital de Santa Marta, Centro Hospitalar Lisboa Central, Lisboa, Portugal.
Carla RochaDepartment of Respiratory Medicine, Hospital de Santa Marta, Centro Hospitalar Lisboa Central, Lisboa, Portugal.
Constança CoelhoFaculdade de Medicina, Universidade de Lisboa, Portugal.
Luísa SemedoDepartment of Respiratory Medicine, Hospital de Santa Marta, Centro Hospitalar Lisboa Central, Lisboa, Portugal.
A Bugalho AlmeidaFaculdade de Medicina, Universidade de Lisboa, Portugal.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSevere exacerbations and mortality are major outcomes in COPD, and risk factors for these events are actively searched for. Several predictors of mortality have been identified in COPD. The inspiratory capacity/total lung capacity (IC/TLC) ratio has been shown to be a strong predictor of all cause and respiratory mortality in patients with COPD. The major objectives of this study were to analyze which clinical parameters, including lung volumes, were the best predictors of the 5-year cumulative risk of hospital admissions or death and the 5-year risk of exacerbations, in stable COPD patients.

methodsThis study retrospectively reviewed data from 98 stable COPD patients, consecutively recruited in 2012. Forced expiratory volume in 1 s (FEV

resultsThe cumulative 5-year combined risk of hospital admission or death was significantly predicted by the ExH and the IC/TLC ratio. Analyzing separately group D, FEV

conclusionExH and IC/TLC ratio were the best predictors of the most severe outcomes in COPD (admissions or mortality), independently of COPD severity. FEV

Indexed as

Inspiratory CapacityTotal Lung CapacityAgedAged, 80 and overDisease ProgressionFemaleForced Expiratory VolumeHumansLungLung Volume MeasurementsMaleMiddle AgedPatient AdmissionPrognosisPulmonary Disease, Chronic ObstructiveRetrospective StudiesadmissionsFEV1IC/TLC ratiomortalitysevere outcomes

Identifiers

PMID29670346
PMCPMC5896658

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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.