Observational studyInternational journal of chronic obstructive pulmonary disease2020
Variation in Assignment of the COPD Patients into a GOLD Group According to Symptoms Severity.
Observational study in International journal of chronic obstructive pulmonary disease, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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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.
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Who cites it
5 citing papers in PubMed.
- Probiotic supplementation reduces IL-6 and improves clinical outcomes in patients with mild-to-moderate COPD: a randomized placebo-controlled trial.BMC pulmonary medicine · 2026Trial
- Stage-Dependent Reorganization of Inflammatory Biomarker Networks During Acute Exacerbations of COPD.Life (Basel, Switzerland) · 2026Article
- GOLD 2026 COPD ABE assessment tool to identify individuals at high risk in a UK multicentre COPD cohort (ERICA).BMJ open respiratory research · 2026Article
- GOLD COPD Exacerbation History Categories and Disease Outcomes.JAMA network open · 2024Article
- The Conceptual Independence of Health Status, Respiratory Symptoms and Dyspnea in Chronic Obstructive Pulmonary Disease in Real Clinical Practice.Diagnostics (Basel, Switzerland) · 2023Article
Corrections and comments
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Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Introduction: The Global Organization of Lung Disease (GOLD) classifies patients with chronic obstructive pulmonary disease (COPD) taking into account the symptoms. The modified Medical Research Council's dyspnea scale (mMRC) and the COPD assessment test (CAT) are used to assess these symptoms. In this study, we analyze the concordance of GOLD classification using mMRC and CAT. Patients and Methods: This is an observational study of a cohort of 169 patients with COPD, who were classified following the GOLD 2017 recommendations, using both mMRC and CAT. A concordance analysis was applied, and a ROC curve was generated to identify the CAT score that best concorded with the mMRC scale. Results: The concordance for the GOLD groups classified by CAT and mMRC was moderate ( Conclusion: Because of the deficient concordance between CAT and mMRC, we propose the use of new cut-off points in future updates of the GOLD strategy.
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Registered trials
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