Evidence map›Paper›PMID 34645842›Full record

Trial reportScientific reports2021

Effect of nocturnal oxygen therapy on exercise performance of COPD patients at 2048 m: data from a randomized clinical trial.

Sophia Gutweniger, Tsogyal D Latshang, Sayaka S Aeschbacher, Fabienne Huber, Deborah Flueck, Mona Lichtblau, Stefanie Ulrich, Elisabeth D Hasler, Philipp M Scheiwiller, Silvia Ulrich and 2 more

Open access · goldAbstract readMulticenter StudyRandomized Controlled Trial
PubMed Full text at PMC Publisher
In one paragraph

Trial report in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.6field-weighted citation impact, top 30% 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

4 citing papers in PubMed, 8 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Article
  4. 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

12 authors at 1 institution in 1 country.

Sophia GutwenigerDepartment of Respiratory Medicine, University Hospital of Zurich, Raemistrasse 100, 8091, Zurich, Switzerland.
Tsogyal D LatshangDepartment of Respiratory Medicine, University Hospital of Zurich, Raemistrasse 100, 8091, Zurich, Switzerland.
Sayaka S AeschbacherDepartment of Respiratory Medicine, University Hospital of Zurich, Raemistrasse 100, 8091, Zurich, Switzerland.
Fabienne HuberDepartment of Respiratory Medicine, University Hospital of Zurich, Raemistrasse 100, 8091, Zurich, Switzerland.
Deborah FlueckDepartment of Respiratory Medicine, University Hospital of Zurich, Raemistrasse 100, 8091, Zurich, Switzerland.
Mona LichtblauDepartment of Respiratory Medicine, University Hospital of Zurich, Raemistrasse 100, 8091, Zurich, Switzerland.
Stefanie UlrichDepartment of Respiratory Medicine, University Hospital of Zurich, Raemistrasse 100, 8091, Zurich, Switzerland.
Elisabeth D HaslerDepartment of Respiratory Medicine, University Hospital of Zurich, Raemistrasse 100, 8091, Zurich, Switzerland.
Philipp M ScheiwillerDepartment of Respiratory Medicine, University Hospital of Zurich, Raemistrasse 100, 8091, Zurich, Switzerland.
Silvia UlrichDepartment of Respiratory Medicine, University Hospital of Zurich, Raemistrasse 100, 8091, Zurich, Switzerland.
Konrad E BlochDepartment of Respiratory Medicine, University Hospital of Zurich, Raemistrasse 100, 8091, Zurich, Switzerland.
Michael FurianDepartment of Respiratory Medicine, University Hospital of Zurich, Raemistrasse 100, 8091, Zurich, Switzerland. michael.furian@usz.ch.
University Hospital of Zurich · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This trial evaluates whether nocturnal oxygen therapy (NOT) during a stay at 2048 m improves altitude-induced exercise intolerance in lowlanders with chronic obstructive pulmonary disease (COPD). 32 lowlanders with moderate to severe COPD, mean ± SD forced expiratory volume in the first second of expiration (FEV

Indexed as

AltitudeExerciseOxygenOxygen Inhalation TherapyPulmonary Disease, Chronic ObstructiveAgedFemaleHumansMaleMiddle AgedPhysical Functional PerformanceOxygen

Identifiers

PMID34645842
PMCPMC8514448
OpenAlexW3205073125

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.