Graphical Diagnosis of Confounding Bias in Instrumental Variable Analysis
نویسندگان
چکیده
منابع مشابه
Using an instrumental variable to test for unmeasured confounding.
An important concern in an observational study is whether or not there is unmeasured confounding, that is, unmeasured ways in which the treatment and control groups differ before treatment, which affect the outcome. We develop a test of whether there is unmeasured confounding when an instrumental variable (IV) is available. An IV is a variable that is independent of the unmeasured confounding a...
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ژورنال
عنوان ژورنال: Epidemiology
سال: 2018
ISSN: 1044-3983
DOI: 10.1097/ede.0000000000000822