Evidence map›Paper›PMID 31564846›Full record

ArticleInternational journal of chronic obstructive pulmonary disease2019

Progression of physical inactivity in COPD patients: the effect of time and climate conditions - a multicenter prospective cohort study.

Afroditi K Boutou, Yogini Raste, Heleen Demeyer, Thierry Troosters, Michael I Polkey, Ioannis Vogiatzis, Zafeiris Louvaris, Roberto A Rabinovich, Thys van der Molen, Judith Garcia-Aymerich and 1 more

Erratum issued Registry-linked trialAbstract readMulticenter Study
In one paragraph

Article in International journal of chronic obstructive pulmonary disease, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. It is linked to trial NCT07512687 (Impact of Ambulatory Oxygen Delivery on Real-world Activity and Quality-of-life in Patients With Interstitial Lung Disease), which is not on this map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
–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.

NCT07512687 narecruitingnot on this mapstarted 2026, after this paper: background citation

Impact of Ambulatory Oxygen Delivery on Real-world Activity and Quality-of-life in Patients With Interstitial Lung Disease (ILD) and Chronic Obstructive Pulmonary Disease (COPD)

TypeinterventionalSponsorState University of New York at BuffaloRan2026 to 2027Enrolled24ConditionsInterstitial Lung Disease, Chronic Obstructive Pulmonary Disease, HypoxemiaArmsPortable Oxygen Concentrator, Portable compressed oxygen D-tanks, No ambulatory oxygen therapy
3 · Its place in the literature

Who cites it

17 citing papers in PubMed.

  1. Trial
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  4. Article
  5. Article
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  9. Physical Activity and Symptom Burden in COPD: The Canadian Obstructive Lung Disease Study.Chronic obstructive pulmonary diseases (Miami, Fla.) · 2023
    Article
  10. Article
  11. Article
  12. Article
  13. Seasons, weather, and device-measured movement behaviors: a scoping review from 2006 to 2020.The international journal of behavioral nutrition and physical activity · 2021
    Article
  14. Article
  15. Article
  16. Article
  17. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors.

Afroditi K Boutou *National Institute for Health Research Respiratory Biomedical Research Unit, Royal Brompton and Harefield NHS Foundation Trust and Imperial College, London, UK.ORCID 0000-0001-7366-2038
Yogini Raste *National Institute for Health Research Respiratory Biomedical Research Unit, Royal Brompton and Harefield NHS Foundation Trust and Imperial College, London, UK.
Heleen DemeyerDepartment of Rehabilitation Sciences, Faculty of Kinesiology and Rehabilitation Sciences and Respiratory Division, University Hospital Leuven, Leuven, Belgium.
Thierry TroostersDepartment of Rehabilitation Sciences, Faculty of Kinesiology and Rehabilitation Sciences and Respiratory Division, University Hospital Leuven, Leuven, Belgium.
Michael I PolkeyNational Institute for Health Research Respiratory Biomedical Research Unit, Royal Brompton and Harefield NHS Foundation Trust and Imperial College, London, UK.ORCID 0000-0003-1243-8571
Ioannis VogiatzisFirst Department of Respiratory Medicine, National & Kapodistrian University of Athens, Athens, Greece.ORCID 0000-0003-4830-7207
Zafeiris LouvarisFirst Department of Respiratory Medicine, National & Kapodistrian University of Athens, Athens, Greece.
Roberto A RabinovichELEGI Colt Laboratory, Centre for Inflammation Research, The Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK.
Thys van der MolenDepartment of General Practice, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
Judith Garcia-AymerichISGlobal, Barcelona, Spain.ORCID 0000-0002-7097-4586
Nicholas S HopkinsonNational Institute for Health Research Respiratory Biomedical Research Unit, Royal Brompton and Harefield NHS Foundation Trust and Imperial College, London, UK.ORCID 0000-0003-3235-0454

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Purpose: Longitudinal data on the effect of time and environmental conditions on physical activity (PA) among COPD patients are currently scarce, but this is an important factor in the design of trials to test interventions that might impact on it. Thus, we aimed to assess the effect of time and climate conditions (temperature, day length and rainfall) on progression of PA in a cohort of COPD patients. Patients and methods: This is a prospective, multicenter, cohort study undertaken as part of the EU/IMI PROactive project, in which we assessed 236 COPD patients simultaneously wearing two activity monitors (Dynaport MiniMod and Actigraph GT3X). A multivariable generalized linear model analysis was conducted to describe the effect of the explanatory variables on PA measures, over three time points (baseline, 6 and 12 months). Results: At 12 months (n=157; FEV Conclusion: COPD patients demonstrate a significant decrease in PA over 1 year follow-up, which is further affected by hours of rainfall, but not by other climate considerations.

Indexed as

ClimateSedentary BehaviorAgedDisease ProgressionExercise ToleranceFemaleFitness TrackersFollow-Up StudiesHumansMaleMiddle AgedProspective StudiesPulmonary Disease, Chronic ObstructiveRespiratory Function TestsTime FactorsWalkingchronic obstructive pulmonary diseaseclimateelapsed timephysical activity

Identifiers

PMID31564846
PMCPMC6732558

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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.