Benefits of ICU admission in critically ill patients: Whether instrumental variable methods or propensity scores should be used

<p>Abstract</p> <p>Background</p> <p>The assessment of the causal effect of Intensive Care Unit (ICU) admission generally involves usual observational designs and thus requires controlling for confounding variables. Instrumental variable analysis is an econometric techn...

Full description

Bibliographic Details
Main Authors: Payen Didier, Sprung Charles, Pirracchio Romain, Chevret Sylvie
Format: Article
Language:English
Published: BMC 2011-09-01
Series:BMC Medical Research Methodology
Subjects:
ICU
Online Access:http://www.biomedcentral.com/1471-2288/11/132