ArticleThe Journal of infection2014
The high burden of pneumonia on US emergency departments during the 2009 influenza pandemic.
Article in The Journal of infection, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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.
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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
4 citing papers in PubMed, 9 citations in OpenAlex.
- Identification of a Pharmacological Biomarker for the Bioassay-Based Quality Control of a Thirteen-Component TCM Formula (Lianhua Qingwen) Used in Treating Influenza A Virus (H1N1) Infection.Frontiers in pharmacology · 2020Article
- Commentary On: Performance of the Cobas(®) Influenza A/B Assay for Rapid Pcr-Based Detection of Influenza Compared to Prodesse ProFlu+ and Viral Culture: Molecular Technology Poised to Change Testing for Influenza at the Point-of-Care.European journal of microbiology & immunology · 2015Article
- Transmission and effect of multiple clusters of seasonal influenza in a Swiss geriatric hospital.Journal of the American Geriatrics Society · 2015Article
- Emergency Department demand associated with seasonal influenza, 2010 through 2014, New South Wales, Australia.Western Pacific surveillance and response journal : WPSARArticle
Corrections and comments
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
Abstract
objectivesDuring the 2009 influenza A (H1N1) pandemic, unusual influenza activity outside the typical winter season provided a unique opportunity to evaluate the association between influenza and pneumonia incidence. We sought to quantify the impact of the 2009 pandemic on the incidence of emergency department (ED) visits for pneumonia in the United States (US).
methodsUsing the Nationwide Emergency Department Survey, we estimated monthly counts and rates of excess all-cause pneumonia ED visits in the US attributable to the pandemic by comparing observed pneumonia ED visits during the pandemic (April 2009-March 2010) to expected values modeled from the three prior years.
resultsThe pandemic was associated with an excess of 180,560 pneumonia ED visits or 0.59 excess pneumonia visits per 1000 US population (95% confidence interval: 0.55, 0.62). These excess visits accounted for 7.0% of all pneumonia ED visits during the pandemic year. The greatest excess occurred during months with highest influenza activity (September-November 2009). Persons aged <65 years accounted for 94% of the excess pneumonia visits.
conclusionsED visits for pneumonia increased substantially during the 2009 pandemic, especially during peak influenza activity, suggesting a strong association between influenza activity and pneumonia incidence during the pandemic period.
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