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Prospective trial of a pediatric ventricular assist device.
MedLine Citation:
PMID:  23190241     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
To the Editor: The selection of controls in observational studies is challenging. The propensity-score methods use baseline variables as predictors and group assignment as the outcome.(1) The resulting model is applied to identify controls whose probability of receiving the intervention is close to that of patients who do receive the intervention. In theory, this approach allows apple-to-apple comparison of groups.(1) This goal is not adequately accomplished in the analysis by Fraser et al. (Aug. 9 issue).(2) The authors compared outcomes in U.S. children receiving mechanical circulatory support from a ventricular assist device (Berlin Heart) with outcomes reported for a registry-based . . .
Authors:
Oliver Miera; Christoph Knosalla; Roland Hetzer
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The New England journal of medicine     Volume:  367     ISSN:  1533-4406     ISO Abbreviation:  N. Engl. J. Med.     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-11-29     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0255562     Medline TA:  N Engl J Med     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2159-61     Citation Subset:  AIM; IM    
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