title: A meta-analysis of effectiveness of influenza vaccine in persons aged 65 years and over living in the community.
abstract: OBJECTIVE
  To estimate the effectiveness of inactivated influenza vaccine in persons aged 65 years and over living in the community.
  
  
  METHODS
  A meta-analysis of studies selected using predetermined criteria without language restriction.
  
  
  CONCLUSIONS
  Influenza vaccine was effective in reducing influenza-like illness by 35% (95% confidence interval (CI) 19-47%), hospitalization for pneumonia and influenza by 33% (CI 27-38%), mortality following hospitalization for pneumonia and influenza by 47% (CI 25-62%); and mortality from all causes by 50% (CI 45-56%).
authors.affiliation: Victorian Public Health Training Program, Charles Connibere Building, The Royal Melbourne Hospital, Flemington Road, Parkville, Vic. 3050, Australia. trang.vu@mh.org.au
authors.forename: Trang
authors.initials: T
authors.lastname: Vu
authors.forename: Stephen
authors.initials: S
authors.lastname: Farish
authors.forename: Mark
authors.initials: M
authors.lastname: Jenkins
authors.forename: Heath
authors.initials: H
authors.lastname: Kelly
mesh_terms: D000368:Aged; D017714:Community-Acquired Infections / Q000453:epidemiology / Q000401:mortality / Q000517:prevention & control; D005060:Europe / Q000453:epidemiology; D006801:Humans; D007252:Influenza Vaccines / Q000494:pharmacology*; D007251:Influenza, Human / Q000453:epidemiology / Q000401:mortality / Q000517:prevention & control*; D009656:North America / Q000453:epidemiology; D017063:Outcome Assessment, Health Care
chemical_list: D007252:Influenza Vaccines