Invited Commentary: Propensity Scores

The propensity score is the conditional probability of exposure to a treatment given observed covariates. In a cohort study, matching or stratifying treated and control subjects on a single variable, the propensity score, tends to balance all of the observed covariates; however, unlike random assign...

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Bibliographic Details
Published inAmerican journal of epidemiology Vol. 150; no. 4; pp. 327 - 333
Main Authors Joffe, Marshall M., Rosenbaum, Paul R.
Format Journal Article
LanguageEnglish
Published United States Oxford University Press 15.08.1999
Subjects
Case-Control Studies
Causality
confounding
Confounding Factors (Epidemiology)
Coronary Artery Bypass
Coronary Disease - surgery
Coronary Disease - therapy
Humans
Models, Statistical
observational study
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Summary:The propensity score is the conditional probability of exposure to a treatment given observed covariates. In a cohort study, matching or stratifying treated and control subjects on a single variable, the propensity score, tends to balance all of the observed covariates; however, unlike random assignment of treatments, the propensity score may not also balance unobserved covariates. The authors review the uses and limitations of propensity scores and provide a brief outline of associated statistical theory. They also present a new result of using propensity scores in case-cohort studies.Am J Epidemiol 1999; 150: 327–33.
Bibliography:ark:/67375/HXZ-6CNP2BZS-1
ArticleID:150.4.327
istex:B890B5475194AA505CA2CC355E37A69C9A38B7B8
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
ObjectType-Review-3
content type line 23
ISSN:0002-9262
1476-6256
DOI:10.1093/oxfordjournals.aje.a010011