Epidemiological studies of the non-specific effects of vaccines: II--methodological issues in the design and analysis of cohort studies

Research output: Contribution to journalJournal articleResearchpeer-review

  • C P Farrington
  • M J Firth
  • L H Moulton
  • H Ravn
  • S Evans
  • Working Group on Non-specific Effects of Vaccines
  • Andersen, Per Kragh
We review sources of bias which can affect non-randomized cohort studies of non-specific effects of vaccines on child mortality. Using examples from the literature on non-specific effects, we describe different sources of selection and information bias, and, where possible, outline analysis strategies to mitigate or eliminate such biases.
Original languageEnglish
JournalTropical Medicine & International Health
Issue number9
Pages (from-to)977-85
Number of pages8
Publication statusPublished - 2009

Bibliographical note

Keywords: Bias (Epidemiology); Child, Preschool; Cohort Studies; Forms and Records Control; Humans; Infant; Medical Records; Vaccination; Vaccines

ID: 14828324