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Using inpatient electronic medical records to study influenza for pandemic preparedness.


ABSTRACT:

Background

We assessed the ability to identify key data relevant to influenza and other respiratory virus surveillance in a large-scale US-based hospital electronic medical record (EMR) dataset using seasonal influenza as a use case. We describe characteristics and outcomes of hospitalized influenza cases across three seasons.

Methods

We identified patients with an influenza diagnosis between March 2017 and March 2020 in 140 US hospitals as part of the US FDA's Sentinel System. We calculated descriptive statistics on the presence of high-risk conditions, influenza antiviral administrations, and severity endpoints.

Results

Among 5.1 million hospitalizations, we identified 29,520 hospitalizations with an influenza diagnosis; 64% were treated with an influenza antiviral within 2 days of admission, and 25% were treated >2 days after admission. Patients treated >2 days after admission had more comorbidities than patients treated within 2 days of admission. Patients never treated during hospitalization had more documentation of cardiovascular and other diseases than treated patients. We observed more severe endpoints in patients never treated (death = 3%, mechanical ventilation [MV] = 9%, intensive care unit [ICU] = 26%) or patients treated >2 days after admission (death = 2%, MV = 14%, ICU = 32%) than in patients treated earlier (treated on admission: death = 1%, MV = 5%, ICU = 23%, treated within 2 days of admission: death = 1%, MV = 7%, ICU = 27%).

Conclusions

We identified important trends in influenza severity related to treatment timing in a large inpatient dataset, laying the groundwork for the use of this and other inpatient EMR data for influenza and other respiratory virus surveillance.

SUBMITTER: Fuller CC 

PROVIDER: S-EPMC8818824 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature

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Publications

Using inpatient electronic medical records to study influenza for pandemic preparedness.

Fuller Candace C CC   Cosgrove Austin A   Sands Kenneth K   Miller Karla M KM   Poland Russell E RE   Rosen Edward E   Sorbello Alfred A   Francis Henry H   Orr Robert R   Dutcher Sarah K SK   Measer Gregory T GT   Cocoros Noelle M NM  

Influenza and other respiratory viruses 20211025 2


<h4>Background</h4>We assessed the ability to identify key data relevant to influenza and other respiratory virus surveillance in a large-scale US-based hospital electronic medical record (EMR) dataset using seasonal influenza as a use case. We describe characteristics and outcomes of hospitalized influenza cases across three seasons.<h4>Methods</h4>We identified patients with an influenza diagnosis between March 2017 and March 2020 in 140 US hospitals as part of the US FDA's Sentinel System. We  ...[more]

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