Evidence map›Paper›PMID 32843169›Full record

ArticleRespiratory medicine

Diffusing capacity in normal-for-age spirometry and spirometric impairments, using reference equations from the global lung function initiative.

Carlos A Vaz Fragoso, Carolyn L Rochester, Gail J McAvay, Lynne Iannone, Linda S Leo-Summers

Open access · greenAbstract read
In one paragraph

Article in Respiratory medicine. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.6field-weighted citation impact, top 27% 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

2 citing papers in PubMed, 8 citations in OpenAlex.

  1. Article
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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 2 institutions in 1 country.

Carlos A Vaz FragosoVeterans Affairs (VA), Connecticut Healthcare System, West Haven, CT, USA; Yale School of Medicine, Department of Internal Medicine, New Haven, CT, USA. Electronic address: carlos.fragoso@yale.edu.
Carolyn L RochesterVeterans Affairs (VA), Connecticut Healthcare System, West Haven, CT, USA; Yale School of Medicine, Department of Internal Medicine, New Haven, CT, USA.
Gail J McAvayYale School of Medicine, Department of Internal Medicine, New Haven, CT, USA.
Lynne IannoneVeterans Affairs (VA), Connecticut Healthcare System, West Haven, CT, USA; Yale School of Medicine, Department of Internal Medicine, New Haven, CT, USA.
Linda S Leo-SummersYale School of Medicine, Department of Internal Medicine, New Haven, CT, USA.
Yale University · USVA Connecticut Healthcare System · 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
NIA NIH HHS P30 AG021342
6 · The paper itself

Abstract

backgroundReference equations from the Global Lung Function Initiative (GLI) are now available for both spirometry and diffusion. However, respiratory phenotypes defined by GLI-based measures of diffusion have not yet been evaluated in GLI-based normal-for-age spirometry or spirometric impairments.

methodsWe evaluated cross-sectional data from 2100 Caucasians, aged 40-85 years. GLI-based spirometric categories included normal-for-age and the impairments of restrictive-pattern and three-level severity of airflow-obstruction (mild, moderate, severe). GLI-based diffusion included diffusing capacity of the lung for carbon monoxide (D

resultsRelative to normal-for-age spirometry, the restrictive-pattern increased the adjORs (95% confidence intervals) for D

conclusionAbnormal diffusion is most prevalent in spirometric impairments but also occurs in normal-for-age spirometry. These results further inform the respiratory phenotypes of GLI-based spirometric categories and, in turn, the spirometric evaluation of respiratory disease.

Indexed as

Pulmonary Diffusing CapacityAdultAgedAged, 80 and overAge FactorsCross-Sectional StudiesFemaleHumansLungMaleMiddle AgedReference ValuesRespiratory Tract DiseasesSpirometryAgingDiffusionGLIObstructionRestrictionSpirometry

Identifiers

PMID32843169
PMCPMC7453093
OpenAlexW3028496325

What OpenQuestion holds

Textmetadata
LicenceTDM
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.