Evidence map›Paper›PMID 28698266›Full record

ArticleRespiratory care2017

Spirometry, Static Lung Volumes, and Diffusing Capacity.

Carlos A Vaz Fragoso, Hilary C Cain, Richard Casaburi, Patty J Lee, Lynne Iannone, Linda S Leo-Summers, Peter H Van Ness

Open access · bronzeAbstract readEvaluation Study
In one paragraph

Article in Respiratory care, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
3.1field-weighted citation impact, top 8% 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

12 citing papers in PubMed, 23 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Article
  4. GPs should not try to detect mild COPD.NPJ primary care respiratory medicine · 2020
    Article
  5. FEVRespiratory care · 2020
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 1 country.

Carlos A Vaz FragosoVeterans Affairs Connecticut Healthcare System and the Yale University School of Medicine, Department of Internal Medicine, New Haven, CT. carlos.fragoso@yale.edu.
Hilary C CainVeterans Affairs Connecticut Healthcare System and the Yale University School of Medicine, Department of Internal Medicine, New Haven, CT.
Richard CasaburiLos Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, Torrance, CA.
Patty J LeeVeterans Affairs Connecticut Healthcare System and the Yale University School of Medicine, Department of Internal Medicine, New Haven, CT.
Lynne IannoneVeterans Affairs Connecticut Healthcare System and the Yale University School of Medicine, Department of Internal Medicine, New Haven, CT.
Linda S Leo-SummersYale University School of Medicine, Department of Internal Medicine, New Haven, CT.
Peter H Van NessYale University School of Medicine, Department of Internal Medicine, New Haven, CT.
VA Connecticut Healthcare System · USYale University · USThe Lundquist Institute · US

Funding

Yale Study Support Suite (YES3): Dashboard and Web Portal Software Supporting Research Workflow through integrated, customizable REDCap External ModulesP30AG021342 · NIA · YALE UNIVERSITY · PI Albert C Shaw · 2002 to 2026
$37.9M
"Defining Chronic Obstructive Pulmonary Disease in Older Persons"R03AG037051 · NIA · YALE UNIVERSITY · PI FRAGOSO, CARLOS A. VAZ · 2010 to 2011
$133k
NIA NIH HHS P30 AG021342NIA NIH HHS R03 AG037051
6 · The paper itself

Abstract

backgroundSpirometric Z-scores from the Global Lung Initiative (GLI) rigorously account for age-related changes in lung function and are thus age-appropriate when establishing spirometric impairments, including a restrictive pattern and air-flow obstruction. However, GLI-defined spirometric impairments have not yet been evaluated regarding associations with static lung volumes (total lung capacity [TLC], functional residual capacity [FRC], and residual volume [RV]) and gas exchange (diffusing capacity).

methodsWe performed a retrospective review of pulmonary function tests in subjects ≥40 y old (mean age 64.6 y), including pre-bronchodilator measures for: spirometry (

resultsRelative to normal spirometry, restrictive-pattern had lower adj

conclusionsA GLI-defined spirometric restrictive pattern is strongly associated with a restrictive ventilatory defect (decreased TLC, FRC, and RV), while GLI-defined spirometric air-flow obstruction is strongly associated with hyperinflation (increased FRC) and air trapping (increased RV and RV/TLC). Both spirometric impairments were strongly associated with impaired gas exchange (decreased hemoglobin-adjusted single-breath diffusing capacity).

Indexed as

AdultAgedAirway ObstructionFemaleFunctional Residual CapacityHumansLeast-Squares AnalysisLinear ModelsLungMaleMiddle AgedMultivariate AnalysisPulmonary Diffusing CapacityResidual VolumeRetrospective StudiesSpirometryair trappingdiffusing capacityGlobal Lung Initiativehyperinflationrestrictionspirometrystatic lung volumes

Identifiers

PMID28698266
PMCPMC6373859
OpenAlexW2735818514

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.