Abstract
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 language | English (US) |
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Pages (from-to) | 977-985 |
Number of pages | 9 |
Journal | Tropical Medicine and International Health |
Volume | 14 |
Issue number | 9 |
DOIs | |
State | Published - Sep 2009 |
Externally published | Yes |
Keywords
- Methodology
- Mortality
- Non-specific effects
- Vaccines
ASJC Scopus subject areas
- Parasitology
- Public Health, Environmental and Occupational Health
- Infectious Diseases