ArticleBMJ open respiratory research2023
Impact of the COVID-19 pandemic on non-COVID-19 community-acquired pneumonia: a retrospective cohort study.
Article in BMJ open respiratory research, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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11 citing papers in PubMed, 10 citations in OpenAlex.
- Temporal trends and demographic disparities in mortality with co-mention of chronic liver disease and pneumonia in the United States, 1999-2024.BMC gastroenterology · 2026Article
- Changes in serious infection and mortality among patients with ANCA-associated vasculitis during the COVID-19 pandemic: an interrupted time-series analysis of J-CANVAS.EULAR rheumatology open · 2026Article
- Pneumococcal community-acquired pneumonia in hospitalized adults in México 2018-2021: serotype distribution and clinical characteristics.Frontiers in public health · 2026Article
- Pneumonia incidence, hospitalizations and mortality before and during the COVID-19 pandemic in Peru: An observational study.PloS one · 2026Observational
- Impact of COVID-19 on sputum isolates and hospital outcomes among patients with pneumonia in Sheffield, United Kingdom: a retrospective cohort study.Frontiers in public health · 2026Article
- Community-Acquired Pneumonia in Young Children: Variables Associated With Emergency Department Attendance and Hospitalization.International journal of pediatrics · 2026Article
- The community acquired pneumonia endotypes and phenotypes dataset.Scientific data · 2025Article
- Machine Learning Accurately Predicts Need for Critical Care Support in Patients Admitted to Hospital for Community-Acquired Pneumonia.Critical care explorations · 2025Observational
- Community versus academic hospital community-acquired pneumonia patients: a nested cohort study.Pneumonia (Nathan Qld.) · 2024Article
- Complex Thrombo-Inflammatory Responses versus Outcomes of Non-COVID-19 Community-Acquired Pneumonia and COVID-19.Journal of innate immunity · 2024Article
- The mortality and years of life lost for community-acquired pneumonia before and during COVID-19 pandemic in China.The Lancet regional health. Western Pacific · 2024Article
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Authors and funding
6 authors at 2 institutions in 2 countries.
Funding
Abstract
backgroundThe COVID-19 pandemic could impact frequency and mortality of non-COVID-19 community-acquired pneumonia (CAP). Changes in frequency, patient mix, treatment and organ dysfunction could cascade together to increase mortality of CAP during compared with pre-COVID-19.
methodsHospitalised CAP patients at St. Paul's Hospital, Vancouver, Canada pre-COVID-19 (fiscal years 2018/2019 and 2019/2020) and during COVID-19 pandemic (2020/2021 and 2021/2022) were evaluated.
resultsIn 5219 CAP patients, there was no significant difference prepandemic versus during pandemic in mean age, gender and Charlson Comorbidity Score. However, hospital mortality increased significantly from pre-COVID-19 versus during COVID-19 (7.5% vs 12.1% respectively, (95% CI for difference: 3.0% to 6.3%), p<0.001), a 61% relative increase, coincident with increases in ICU admission (18.3% vs 25.5%, respectively, (95% CI for difference: 5.0% to 9.5%) p<0.001, 39% relative increase) and ventilation (12.7% vs 17.5%, respectively, (95% CI for difference: 2.8% to 6.7%) p<0.001, 38% relative increase). Results remained the same after regression adjustment for age, sex and Charlson score. CAP hospital admissions decreased 27% from pre-COVID-19 (n=1349 and 1433, 2018/2019 and 2019/2020, respectively) versus the first COVID-19 pandemic year (n=1047 in 2020/2021) then rose to prepandemic number (n=1390 in 2021/2022). During prepandemic years, CAP admissions peaked in winter; during COVID-19, the CAP admissions peaked every 6 months. CONCLUSIONS AND RELEVANCE: This is the first study to show that the COVID-19 pandemic was associated with increases in hospital mortality, ICU admission and invasive mechanical ventilation rates of non-COVID-19 CAP and a transient, 1-year frequency decrease. There was no winter seasonality of CAP during the COVID-19 pandemic era. These novel findings could be used to guide future pandemic planning for CAP hospital care.
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