Observational studyInternational journal of chronic obstructive pulmonary disease2017
Self-reported daily walking time in COPD: relationship with relevant clinical and functional characteristics.
Observational study in International journal of chronic obstructive pulmonary disease, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.
What it found
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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.
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.
Who cites it
20 citing papers in PubMed, 1 synthesis or guideline pooled it.
- A Systematic Literature Review of the Humanistic Burden of COPD.International journal of chronic obstructive pulmonary diseasePooled it
- Benefits of different intensities of pulmonary rehabilitation for patients with moderate-to-severe COPD according to the GOLD stage: a prospective, multicenter, single-blinded, randomized, controlled trial.International journal of chronic obstructive pulmonary disease · 2019Trial
- People with chronic obstructive pulmonary disease and exercise behaviour: a scoping review using the CFIR framework.BMC pulmonary medicine · 2026Article
- Characteristics of bronchiectasis in patients with different genotypes of severe αERJ open research · 2026Article
- Development and Validation of a Quantitative Score for the Criteria Clinical Control in Stable COPD Proposed in the Spanish COPD Guidelines (GesEPOC): Results of the EPOCONSUL Audit.Journal of clinical medicine · 2025Article
- Multi-modal evaluation of respiratory diaphragm motion in chronic obstructive pulmonary disease using MRI series and CT images.Japanese journal of radiology · 2024Article
- Risk of lung disease in the PI*SS genotype of alpha-1 antitrypsin: an EARCO research project.Respiratory research · 2024Article
- Processing of Sedentary Time and Its Reference Equation in Patients with COPD.International journal of chronic obstructive pulmonary disease · 2024Article
- Clinical and functional characteristics of individuals with alpha-1 antitrypsin deficiency: EARCO international registry.Respiratory research · 2022Observational
- Frequency and Associated Factors of Suicidal Ideation in Patients with Chronic Obstructive Pulmonary Disease.Journal of clinical medicine · 2022Article
- Discriminant Validity of a Single Clinical Question for the Screening of Inactivity in Individuals Living with COPD.International journal of chronic obstructive pulmonary disease · 2022Article
- Time Distances to Residential Food Amenities and Daily Walking Duration: A Cross-Sectional Study in Two Low Tier Chinese Cities.International journal of environmental research and public health · 2021Article
- Correlation between disease severity factors and EQ-5D utilities in chronic obstructive pulmonary disease.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2020Article
- Easy to Perform Physical Performance Tests to Identify COPD Patients with Low Physical Activity in Clinical Practice.International journal of chronic obstructive pulmonary disease · 2020Observational
- Self-reported walking and associated factors in the Spanish population with chronic obstructive pulmonary disease.BMC pulmonary medicine · 2018Article
- What have we learned from observational studies and clinical trials of mild to moderate COPD?Respiratory research · 2018Review
- Prevalence of smoking in a psychiatric hospital and its relationship with respiratory symptoms and the prevalence of COPD.International journal of chronic obstructive pulmonary disease · 2018Observational
- Depressive status explains a significant amount of the variance in COPD assessment test (CAT) scores.International journal of chronic obstructive pulmonary disease · 2018Observational
- Validation of clinical control in COPD as a new tool for optimizing treatment.International journal of chronic obstructive pulmonary diseaseObservational
- The Natural History of Severe Chronic Obstructive Pulmonary Disease: The SPOCCAT Study Protocol.Open respiratory archivesArticle
Corrections and comments
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Authors and funding
11 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundQuantifying physical activity in chronic obstructive pulmonary disease (COPD) is important as physical inactivity is related to poor health outcomes. This study analyzed the relationship between patients' self-reported daily walking time and relevant characteristics related to COPD severity.
methodsPooled analysis was performed on data from four observational studies on which daily walking time was gathered from a personal interview. Patients were classified as physically inactive if walking time was <30 min/day. Walking times were described and compared according to several markers of disease severity.
resultsThe mean daily walking time of 5,969 patients was 66 (standard deviation [SD] 47) min/day; 893 (15%) patients were inactive. A linear dose-response relationship was observed between walking time and the modified Medical Research Council (mMRC) dyspnea score, admissions, COPD assessment test (CAT), body mass index, airway obstruction, dyspnea, exacerbation (BODEx) index, and Charlson index (
conclusionLower self-reported walking times are related to worse markers of disease severity in COPD.
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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 Socratic graph.