Open AccessHospitalization following outpatient medical care for influenza: US influenza vaccine effectiveness network, 2011‐12—2015‐16
Author(s) -
Appiah Grace D.,
Chung Jessie R.,
Flannery Brendan,
Havers Fiona P.,
Zimmerman Richard K.,
Nowalk Mary Patricia,
Monto Arnold S.,
Martin Emily T.,
Gaglani Manjusha,
Murthy Kempapura,
Jackson Lisa A.,
Jackson Michael L.,
McLean Huong Q.,
Belongia Edward A.,
Fry Alicia M.
Publication year - 2019
Publication title -
influenza and other respiratory viruses
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.743
H-Index - 57
eISSN - 1750-2659
pISSN - 1750-2640
DOI - 10.1111/irv.12616
Subject(s) - influenza vaccine , medicine , virology , outpatient visits , outpatient clinic , medical care , emergency medicine , vaccination , health care , economics , economic growth
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 7813 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.