Evidence map›Paper›PMID 38570835›Full record

ArticleRespiratory research2024

Updated reference values for static lung volumes from a healthy population in Austria.

Tobias Mraz, Shervin Asgari, Ahmad Karimi, Marie-Kathrin Breyer, Sylvia Hartl, Owat Sunanta, Alina Ofenheimer, Otto C Burghuber, Angela Zacharasiewicz, Bernd Lamprecht and 3 more

Abstract read
In one paragraph

Article in Respiratory research, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
–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

8 citing papers in PubMed, 1 synthesis or guideline pooled it.

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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

13 authors.

Tobias MrazDepartment of Respiratory and Pulmonary Diseases, Vienna Healthcare Group, Clinic Penzing, Sanatoriumstrasse 2, Vienna, 1140, Austria. tobias.mraz@leadstudy.at.
Shervin AsgariLudwig Boltzmann Institute for Lung Health, Vienna, Austria.
Ahmad KarimiLudwig Boltzmann Institute for Lung Health, Vienna, Austria.
Marie-Kathrin BreyerDepartment of Respiratory and Pulmonary Diseases, Vienna Healthcare Group, Clinic Penzing, Sanatoriumstrasse 2, Vienna, 1140, Austria.
Sylvia HartlLudwig Boltzmann Institute for Lung Health, Vienna, Austria.
Owat SunantaLudwig Boltzmann Institute for Lung Health, Vienna, Austria.
Alina OfenheimerLudwig Boltzmann Institute for Lung Health, Vienna, Austria.
Otto C BurghuberDepartment of Respiratory and Pulmonary Diseases, Vienna Healthcare Group, Clinic Penzing, Sanatoriumstrasse 2, Vienna, 1140, Austria.
Angela ZacharasiewiczDepartment of Pediatrics, Clinic Ottakring, Vienna, Austria.
Bernd LamprechtDepartment of Pulmonology, Kepler University Hospital, Linz, Austria.
Caspar SchiffersLudwig Boltzmann Institute for Lung Health, Vienna, Austria.
Emiel F M WoutersLudwig Boltzmann Institute for Lung Health, Vienna, Austria.
Robab Breyer-KohansalLudwig Boltzmann Institute for Lung Health, Vienna, Austria.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundReference values for lung volumes are necessary to identify and diagnose restrictive lung diseases and hyperinflation, but the values have to be validated in the relevant population. Our aim was to investigate the Global Lung Function Initiative (GLI) reference equations in a representative healthy Austrian population and create population-derived reference equations if poor fit was observed.

methodsWe analysed spirometry and body plethysmography data from 5371 respiratory healthy subjects (6-80 years) from the Austrian LEAD Study. Fit with the GLI equations was examined using z-scores and distributions within the limits of normality. LEAD reference equations were then created using the LMS method and the generalized additive model of location shape and scale package according to GLI models.

resultsGood fit, defined as mean z-scores between + 0.5 and -0.5,was not observed for the GLI static lung volume equations, with mean z-scores > 0.5 for residual volume (RV), RV/TLC (total lung capacity) and TLC in both sexes, and for expiratory reserve volume (ERV) and inspiratory capacity in females. Distribution within the limits of normality were shifted to the upper limit except for ERV. Population-derived reference equations from the LEAD cohort showed superior fit for lung volumes and provided reproducible results.

conclusionGLI lung volume reference equations demonstrated a poor fit for our cohort, especially in females. Therefore a new set of Austrian reference equations for static lung volumes was developed, that can be applied to both children and adults (6-80 years of age).

Indexed as

LungAdultAustriaChildFemaleForced Expiratory VolumeHumansLung Volume MeasurementsMaleReference ValuesSpirometryTotal Lung CapacityVital CapacityBody plethysmographyGeneral populationLung functionLung volumesReference equations

Identifiers

PMID38570835
PMCPMC10988832

What Socratic holds

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LicenceCC BY
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Registered trials

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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 Socratic graph.