ArticleThe journal of allergy and clinical immunology. In practice2021
Chronic Respiratory Diseases and the Outcomes of COVID-19: A Nationwide Retrospective Cohort Study of 39,420 Cases.
Article in The journal of allergy and clinical immunology. In practice, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 6 of them syntheses that pooled 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.
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
36 citing papers in PubMed, 6 syntheses or guidelines pooled it, 86 citations in OpenAlex.
- Prevalence of systemic complications of COVID-19 in critically ill patients: systematic review with meta-analysis.Revista latino-americana de enfermagem · 2025Pooled it
- Asthma and COPD as co-morbidities in patients hospitalised with Covid-19 disease: a global systematic review and meta-analysis.BMC pulmonary medicine · 2023Pooled it
- The impact of chronic rhinosinusitis on COVID-19 risk and outcomes: A systematic review and meta-analysis.Frontiers in immunology · 2023Pooled it
- Asthma and COVID-19 risk: a systematic review and meta-analysis.The European respiratory journal · 2022Pooled it
- Pooled it
- The Risk of COVID-19 Related Hospitalsation, Intensive Care Unit Admission and Mortality in People With Underlying Asthma or COPD: A Systematic Review and Meta-Analysis.Frontiers in medicine · 2021Pooled it
- National, Subnational, and Risk-Attributed Burden of Chronic Respiratory Diseases in Iran (1990-2021): A Longitudinal Clustering Analysis of Global Burden of Disease 2021 Data.Health science reports · 2026Article
- Early Cytokine Profiles in Critically Ill Patients with COVID-19 and Their Association with Mortality.Metabolites · 2026Article
- The Impact of COVID-19 on Obstructive Pulmonary Diseases: A Narrative Review of Long-Term Consequences and Vaccination Strategies.Health science reports · 2026Article
- Impact of SARS-CoV-2 Pneumonia on Chronic Obstructive Pulmonary Disease: A Comparative Study in ICU Patients.Viruses · 2025Article
- Assessing the impact of chronic respiratory diseases on COVID-19 in-hospital mortality in the Italian population: a comparative study.European journal of public health · 2025Article
- Comorbidities and Severe COVID-19 Outcomes: A Retrospective Analysis of Hospitalized Patients in Three Counties in Romania.Microorganisms · 2025Article
- The changing demographics and severity in hospitalized patients across COVID-19 variants: A national cohort study.Journal of clinical and translational science · 2025Article
- Long-term impact of COVID-19 hospitalisation among individuals with pre-existing airway diseases in the UK: a multicentre, longitudinal cohort study - PHOSP-COVID.ERJ open research · 2024Article
- Chronic Obstructive Pulmonary Disease and the Omicron Variant of COVID-19 Prognosis: A Retrospective Cohort Study.Cureus · 2024Article
- COVID-19 Severity and Mortality in Veterans with Chronic Lung Disease.Annals of the American Thoracic Society · 2024Article
- Demographic and geographical trends in chronic lower respiratory diseases mortality in the United States, 1999 to 2020.Respiratory research · 2024Article
- Acute and post-acute respiratory complications of SARS-CoV-2 infection: population-based cohort study in South Korea and Japan.Nature communications · 2024Article
- Clinical trends among patients with asthma hospitalized for COVID-19 based on data from a nationwide database: an observational study.BMC pulmonary medicine · 2024Observational
- Rethinking Immunological Risk: A Retrospective Cohort Study of Severe SARS-Cov-2 Infections in Individuals With Congenital Immunodeficiencies.The journal of allergy and clinical immunology. In practice · 2023Article
Corrections and comments
- Commented on by
Authors and funding
7 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundChronic respiratory diseases (CRD) are common among patients with coronavirus disease 2019 (COVID-19).
objectivesWe sought to determine the association between CRD (including disease overlap) and the clinical outcomes of COVID-19.
methodsData of diagnoses, comorbidities, medications, laboratory results, and clinical outcomes were extracted from the national COVID-19 reporting system. CRD was diagnosed based on International Classification of Diseases-10 codes. The primary endpoint was the composite outcome of needing invasive ventilation, admission to intensive care unit, or death within 30 days after hospitalization. The secondary endpoint was death within 30 days after hospitalization.
resultsWe included 39,420 laboratory-confirmed patients from the electronic medical records as of May 6, 2020. Any CRD and CRD overlap was present in 2.8% and 0.2% of patients, respectively. Chronic obstructive pulmonary disease (COPD) was most common (56.6%), followed by bronchiectasis (27.9%) and asthma (21.7%). COPD-bronchiectasis overlap was the most common combination (50.7%), followed by COPD-asthma (36.2%) and asthma-bronchiectasis overlap (15.9%). After adjustment for age, sex, and other systemic comorbidities, patients with COPD (odds ratio [OR]: 1.71, 95% confidence interval [CI]: 1.44-2.03) and asthma (OR: 1.45, 95% CI: 1.05-1.98), but not bronchiectasis, were more likely to reach to the composite endpoint compared with those without at day 30 after hospitalization. Patients with CRD were not associated with a greater likelihood of dying from COVID-19 compared with those without. Patients with CRD overlap did not have a greater risk of reaching the composite endpoint compared with those without.
conclusionCRD was associated with the risk of reaching the composite endpoint, but not death, of COVID-19.
Indexed as
Identifiers
What OpenQuestion holds
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.