articleThe LancetJan 1, 2002Closed access

Bias and causal associations in observational research

DADavid A. GrimesKFKenneth F. Schulz

Triangle · Family Health International 360

PubMed
Indexed incrossrefpubmed

Abstract

No abstract available for this paper.

Citation impact

1,514
total citations
FWCI
35.81
Percentile
100%
References
53
Citations per year

Authors

2

Topics & keywords

Topics
Keywords
  • Confounding
  • Information bias
  • Observational study
  • Selection bias
  • Spurious relationship
  • Internal validity
  • Omitted-variable bias
  • Comparability
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