期刊
TROPICAL MEDICINE & INTERNATIONAL HEALTH
卷 14, 期 9, 页码 977-985出版社
WILEY-BLACKWELL PUBLISHING, INC
DOI: 10.1111/j.1365-3156.2009.02302.x
关键词
vaccines; mortality; non-specific effects; methodology
资金
- Medical Research Council [MC_U190088485] Funding Source: researchfish
- Medical Research Council [MC_U190088485] Funding Source: Medline
- Wellcome Trust [061089, 081835] Funding Source: Medline
- MRC [MC_U190088485] Funding Source: UKRI
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.
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