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- Title
Influenza vaccine effectiveness in the elderly based on administrative databases: change in immunization habit as a marker for bias.
- Authors
Hottes, Travis S; Skowronski, Danuta M; Hiebert, Brett; Janjua, Naveed Z; Roos, Leslie L; Van Caeseele, Paul; Law, Barbara J; De Serres, Gaston
- Abstract
Administrative databases provide efficient methods to estimate influenza vaccine effectiveness (IVE) against severe outcomes in the elderly but are prone to intractable bias. This study returns to one of the linked population databases by which IVE against hospitalization and death in the elderly was first assessed. We explore IVE across six more recent influenza seasons, including periods before, during, and after peak activity to identify potential markers for bias.
- Publication
PloS one, 2011, Vol 6, Issue 7, pe22618
- ISSN
1932-6203
- Publication type
Journal Article
- DOI
10.1371/journal.pone.0022618