ArticleInternational journal of chronic obstructive pulmonary disease2018
Alternative definitions of chronic bronchitis and their correlation with CT parameters.
Article in International journal of chronic obstructive pulmonary disease, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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15 citing papers in PubMed, 26 citations in OpenAlex.
- The effect of nebulized N-acetylcysteine on the phlegm of chronic obstructive pulmonary disease: the NEWEST study.BMC pulmonary medicine · 2024Trial
- Bronchial Rheoplasty for Treatment of Chronic Bronchitis. Twelve-Month Results from a Multicenter Clinical Trial.American journal of respiratory and critical care medicine · 2020Trial
- Impact of bronchitis variability on outcomes of COPD.BMJ open respiratory research · 2025Observational
- Computed tomography characteristics of chronic bronchitis and its association with disease severity and clinical outcomes in viral pneumonia: a retrospective cohort study.Journal of thoracic disease · 2025Article
- Interventional pulmonology for chronic inflammatory airway diseases.Chinese medical journal pulmonary and critical care medicine · 2024Review
- Clinical significance of chronic bronchitis in different racial groups.BMC pulmonary medicine · 2024Article
- Retreatment of symptomatic chronic bronchitis with bronchial rheoplasty.BMJ case reports · 2024Article
- Sputum microbiota and inflammatory subtypes in asthma, COPD, and its overlap.The journal of allergy and clinical immunology. Global · 2024Article
- Decreased Cardiac Autonomic Function is Associated with Higher Exacerbation Risk and Symptom Burden in Chronic Obstructive Pulmonary Disease.Chronic obstructive pulmonary diseases (Miami, Fla.) · 2023Article
- Patients' acceptance of outcome and experience measurements during hospitalisation for COPD exacerbations: a CICERO Clinical Research Collaboration-European Lung Foundation online patient survey.ERJ open research · 2023Article
- Comparison of clinical characteristics between chronic bronchitis and non-chronic bronchitis in patients with chronic obstructive pulmonary disease.BMC pulmonary medicine · 2022Article
- Diagnosis and Treatment of Early Chronic Obstructive Lung Disease (COPD).Journal of clinical medicine · 2020Review
- Mixed Phenotype of Emphysema and Airway Wall Thickening Is Associated with Frequent Exacerbation in Chronic Obstructive Pulmonary Disease Patients.International journal of chronic obstructive pulmonary disease · 2019Article
- CAT Score and SGRQ Definitions of Chronic Bronchitis as an Alternative to the Classical Definition.International journal of chronic obstructive pulmonary disease · 2019Article
- Clinical Impact of the Bronchiectasis with Chronic Bronchitis Symptoms in COPD: Analysis of a Longitudinal Cohort.International journal of chronic obstructive pulmonary diseaseArticle
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Authors and funding
7 authors at 3 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
Introduction: Phenotyping of chronic bronchitis (CB) using COPD assessment tool (CAT) scores and St George's Respiratory Questionnaire (SGRQ) has rarely been attempted. The present study defined CB using CAT 1 and 2 scores and the questions on the severity of cough and sputum from the SGRQ. Furthermore, the predictability of CT parameters was also assessed for each CB definition. Materials and methods: Patients enrolled in the Korean Obstructive Lung Disease study from June 2005 to October 2015 were evaluated for this study. The patients were spirometrically diagnosed with COPD and had a smoking history of >10 pack-years. Volumetric CT scans were performed for each patient upon enrollment in the cohort. Two definitions of CB using CAT 1/2 scores and SGRQ questions were used to phenotype CB among the study patients. Receiver operating characteristic curve analysis was performed to estimate the predictability of CT parameters for the CB phenotypes. Results: Using CAT 1/2 scores, 57 of 279 (20.4%) patients had CB, and 178 of 573 (31.1%) had CB when the SGRQ questions were used to phenotype it. Total CAT and SGRQ scores were significantly higher in the CB group than those in the non-CB group for both definitions of CB. Forced expiratory volume in 1 second was lower for both CAT-defined and SGRQ-defined CB than that in the non-CB group. Mean wall thickness was significantly higher for both CB groups than in the non-CB group. Expiratory lung volume was higher and mean lung density was significantly lower for the SGRQ-defined CB group than non-CB group. Conclusion: The 2 CB definitions using CAT scores and the SGRQ questions correlated with associated CT airway parameters. SGRQ-defined CB better reflected the accompaniment of small airway obstruction when compared with CAT-defined CB.
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