title: Effectiveness of influenza vaccine for preventing laboratory-confirmed influenza hospitalizations in adults, 2011-2012 influenza season.
abstract: During the 2011-2012 influenza season, we enrolled hospitalized adults with acute respiratory illness and tested each for influenza using reverse transcription polymerase chain reaction. Influenza vaccination was verified in 35% (6/17) of adults with influenza-associated hospitalizations compared to 64% (97/152) of test-negative controls; adjusted vaccine effectiveness was 71.4% (95% confidence interval, 17.1%-94.9%).
authors: Vanderbilt University Medical Center, Nashville, TN 37232, USA. keipp.talbot@vanderbilt.edu
authors: H Keipp
authors: HK
authors: Talbot
authors: Yuwei
authors: Y
authors: Zhu
authors: Qingxia
authors: Q
authors: Chen
authors: John V
authors: JV
authors: Williams
authors: Mark G
authors: MG
authors: Thompson
authors: Marie R
authors: MR
authors: Griffin
mesh_terms: D000368:Aged; D016022:Case-Control Studies; D005260:Female; D006760:Hospitalization / Q000706:statistics & numerical data; D006801:Humans; D007252:Influenza Vaccines / Q000008:administration & dosage*; D007251:Influenza, Human / Q000517:prevention & control*; D008297:Male; D008875:Middle Aged; D012141:Respiratory Tract Infections / Q000517:prevention & control / Q000821:virology; D014611:Vaccination / Q000706:statistics & numerical data
chemical_list: D007252:Influenza Vaccines
keywords: effectiveness; influenza vaccine; older adults