Ontology highlight
ABSTRACT:
SUBMITTER: VanderWeele TJ
PROVIDER: S-EPMC4242711 | biostudies-literature | 2008 Sep
REPOSITORIES: biostudies-literature
VanderWeele Tyler J TJ Hernán Miguel A MA Robins James M JM
Epidemiology (Cambridge, Mass.) 20080901 5
We present results that allow the researcher in certain cases to determine the direction of the bias that arises when control for confounding is inadequate. The results are given within the context of the directed acyclic graph causal framework and are stated in terms of signed edges. Rigorous definitions for signed edges are provided. We describe cases in which intuition concerning signed edges fails and we characterize the directed acyclic graphs that researchers can use to draw conclusions ab ...[more]