Evidence map›Paper›PMID 29362258›Full record

Trial reportBMJ open2018

Cost-effectiveness of FreeO

Thomas G Poder, Christian R C Kouakou, Pierre-Alexandre Bouchard, Véronique Tremblay, Sébastien Blais, François Maltais, François Lellouche

2 registry-linked trialsOpen access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in BMJ open, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
2.0field-weighted citation impact, top 13% 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.

NCT01393015 naunknown statusnot on this map

Using a Closed-loop System for Oxygen Delivery (FreeO2) to Optimize Oxygentherapy in Patients With Exacerbations of Chronic Obstructive Pulmonary Disease.

TypeinterventionalSponsorCentre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de QuebecRan2011 to 2011Enrolled50ConditionsCOPD ExacerbationArmsAutomated settings on the oxygen delivery device, Manual settings with FreeO2 system in collection mode
NCT04320056 naunknown statusnot on this mapstarted 2020, after this paper: background citation

Automated Oxygen Titration - Monitoring and Weaning in Patients With Infectious Pneumonia Requiring Oxygen - Impact on the Number of Interventions for Healthcare Workers. An Innovative Device to Manage Patients With COVID-19 Pneumonia COVID Study (Closed-Loop Oxygen to Verify That Healthcare Workers Interventions Decreaseduring Pneumonia)

TypeinterventionalSponsorLaval UniversityRan2020 to 2021Enrolled216ConditionsCoronavirus, Pneumonia, Oxygen ToxicityArmsStandard administration of oxygen flow, Automated oxygen administration - FreeO2
3 · Its place in the literature

Who cites it

11 citing papers in PubMed, 18 citations in OpenAlex.

  1. Pricing Policy for Medical Oxygen and Potential Savings.Journal of evaluation in clinical practice · 2026
    Review
  2. Article
  3. [Application of intelligent oxygen management system in neonatal intensive care units: a scoping review].Zhongguo dang dai er ke za zhi = Chinese journal of contemporary pediatrics · 2025
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Eosinophil counts in first COPD hospitalizations: a 1-year cost analysis in Quebec, Canada.International journal of chronic obstructive pulmonary disease
    Observational
  10. Article
  11. Observational
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

7 authors at 4 institutions in 1 country.

Thomas G PoderUETMIS and Centre de Recherche du CHUS, CIUSSS de l'Estrie-CHUS, Sherbrooke, Quebec, Canada.
Christian R C KouakouDépartement d'Économique, Université de Sherbrooke, Sherbrooke, Quebec, Canada.
Pierre-Alexandre BouchardCentre de recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec - Université Laval, Québec, Canada.
Véronique TremblayDirection de la performance clinique et organisationnelle, Institut Universitaire de Cardiologie et de Pneumologie de Québec-Université Laval, Québec, Canada.
Sébastien BlaisDirection de la performance clinique et organisationnelle, Institut Universitaire de Cardiologie et de Pneumologie de Québec-Université Laval, Québec, Canada.
François MaltaisCentre de recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec - Université Laval, Québec, Canada.
François LelloucheCentre de recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec - Université Laval, Québec, Canada.
Université Laval · CAInstitut universitaire de cardiologie et de pneumologie de Québec · CACentre Hospitalier Universitaire de Sherbrooke · CAUniversité de Sherbrooke · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveConduct a cost-effectiveness analysis of FreeO

settingTertiary acute care hospital in Quebec, Canada.

participants47 patients with COPD hospitalised for acute exacerbations.

interventionAn automated oxygen-titration and oxygen-weaning technology. METHODS AND OUTCOMES: The costs for hospitalisation and follow-up for 180 days were calculated using a microcosting approach and included the cost of FreeO

resultsFreeO

conclusionFreeO TRIAL REGISTRATION NUMBER: NCT01393015; Post-results.

Indexed as

AgedAged, 80 and overCost-Benefit AnalysisDisease ProgressionFemaleHospitalizationHumansHypoxiaLungMaleMiddle AgedOxygenOxygen Inhalation TherapyPilot ProjectsPulmonary Disease, Chronic ObstructiveQuality of LifeOxygenbootstrapcanadacopdcost-effectivenessfreeo2oxygen-titration

Identifiers

PMID29362258
PMCPMC5786115
OpenAlexW2790532172

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

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.