Epidemiological studies of the non-specific effects of vaccines: II--methodological issues in the design and analysis of cohort studies.
CP Farrington;
MJ Firth;
LH Moulton;
H Ravn;
PK Andersen;
S Evans
;
Working Group on Non-specific Effects of Vaccines;
(2009)
Epidemiological studies of the non-specific effects of vaccines: II--methodological issues in the design and analysis of cohort studies.
Tropical medicine & international health, 14 (9).
pp. 977-985.
ISSN 1360-2276
DOI: 10.1111/j.1365-3156.2009.02302.x
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.
Item Type | Article |
---|---|
Keywords | vaccines, mortality, non-specific effects, methodology, child survival, routine immunizations, propensity score, guinea-bissau, vaccination, mortality, situation, Bias (Epidemiology), Child, Preschool, Cohort Studies, Forms and Records Control, Humans, Infant, Medical Records, Vaccination, mortality, Vaccines, adverse effects |
ISI | 269263800002 |
ORCID: https://orcid.org/0000-0002-1474-2596