Evidence map›Paper›PMID 33008938›Full record

ArticleThe European respiratory journal2021

Breath volatile organic compounds and inflammatory markers in adult asthma patients: negative results from the ALLIANCE cohort.

Olaf Holz, Benjamin Waschki, Henrik Watz, Anne Kirsten, Mustafa Abdo, Frauke Pedersen, Markus Weckmann, Oliver Fuchs, Anna-Maria Dittrich, Gesine Hansen and 6 more

Open access · bronzeAbstract readLetter
In one paragraph

Article in The European respiratory journal, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
1.0field-weighted citation impact, top 25% 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

6 citing papers in PubMed, 11 citations in OpenAlex.

  1. Article
  2. Asthma endotypes and theratypes.Chinese medical journal pulmonary and critical care medicine · 2026
    Review
  3. Article
  4. Review
  5. Review
  6. 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

16 authors at 6 institutions in 2 countries.

Olaf HolzFraunhofer ITEM, Hannover, Germany.ORCID 0000-0003-0665-7807
Benjamin WaschkiUniversity Hospital Hamburg-Eppendorf, Department of Cardiology, University Heart and Vascular Center Hamburg, Hamburg, Germany.ORCID 0000-0002-1070-3661
Henrik WatzGerman Center for Lung Research, ARCN.
Anne KirstenGerman Center for Lung Research, ARCN.
Mustafa AbdoLungenClinic Grosshansdorf, Grosshansdorf, Germany.
Frauke PedersenGerman Center for Lung Research, ARCN.
Markus WeckmannGerman Center for Lung Research, ARCN.ORCID 0000-0001-5342-979X
Oliver FuchsDept of Paediatric Respiratory Medicine, Inselspital, University Children's Hospital of Bern, University of Bern, Bern, Switzerland.ORCID 0000-0002-7127-5226
Anna-Maria DittrichGerman Center for Lung Research, BREATH.
Gesine HansenGerman Center for Lung Research, BREATH.
Matthias V KoppGerman Center for Lung Research, ARCN.
Erika von MutiusGerman Center for Lung Research, CPC-M.ORCID 0000-0002-8893-4515
Klaus F RabeLungenClinic Grosshansdorf, Grosshansdorf, Germany.
Jens M HohlfeldFraunhofer ITEM, Hannover, Germany.ORCID 0000-0003-2646-6186
Thomas BahmerLungenClinic Grosshansdorf, Grosshansdorf, Germany.
ALLIANCE Study Group
German Center for Lung Research · DEMedizinische Hochschule Hannover · DEFraunhofer Institute for Toxicology and Experimental Medicine · DEUniversität Hamburg · DEUniversity Hospital Schleswig-Holstein · DEUniversity of Bern · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

PubMed holds no abstract for this paper.

Indexed as

AsthmaVolatile Organic CompoundsAdultBiomarkersBreath TestsExhalationHumansNegative ResultsBiomarkersVolatile Organic Compounds

Identifiers

PMID33008938
PMCPMC7876421
OpenAlexW3090340012

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.