| Literature DB >> 23208333 |
David L Streiner1, Geoffrey R Norman2.
Abstract
Propensity scores have been proposed as a method of equating groups at baseline, which is a problem, especially in studies that do not use randomization. This article discusses some difficulties with the technique that may jeopardize the findings if users (and readers) are not aware of these problems.Mesh:
Year: 2012 PMID: 23208333 DOI: 10.1378/chest.12-1920
Source DB: PubMed Journal: Chest ISSN: 0012-3692 Impact factor: 9.410