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Influenza Other Respir Viruses. 2018 Nov 8. doi: 10.1111/irv.12616. [Epub ahead of print]

Hospitalization following Outpatient Medical Care for Influenza: US Influenza Vaccine Effectiveness Network, 2011-12-2015-16.

Author information

1
Epidemic Intelligence Service, Centers for Disease Control and Prevention, Atlanta, GA.
2
Influenza Division, Centers for Disease Control and Prevention, Atlanta, Georgia.
3
University of Pittsburgh Schools of Health Sciences and UPMC, Pittsburgh, Pennsylvania.
4
University of Michigan, School of Public Health Department of Epidemiology, Ann Arbor, Michigan.
5
Baylor Scott and White Health, Texas A&M University Health Science Center College of Medicine, Temple, Texas.
6
Kaiser Permanente Washington Health Research Institute, Seattle, Washington.
7
Marshfield Clinic Research Institute, Marshfield, Wisconsin.

Abstract

Over five seasons, we determined the proportion of outpatients with laboratory-confirmed, influenza-associated illness who were hospitalized within 30 days following the outpatient visit. Overall, 136 (1.7%) of 7,813 influenza-positive patients were hospitalized a median of 4 days after an outpatient visit. Patients aged ≥65 years and those with high-risk conditions were at increased risk of hospitalization. After controlling for age and high-risk conditions, vaccination status and infecting influenza virus type were not associated with hospitalization risk among adults. This article is protected by copyright. All rights reserved.

KEYWORDS:

Hospitalization; Influenza; Medically attended acute respiratory illness; Outpatients

PMID:
30408341
DOI:
10.1111/irv.12616
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