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The essential role of balance tests in propensity‐matched observational studies: Comments on ‘A critical appraisal of propensity‐score matching in the medical literature between 1996 and 2003’ by Peter Austin, <i>Statistics in Medicine</i>
Peter Austin has made an exacting, timely and eye-opening review of uses of propensity-score matching in medical research.Its Section 2.1 argues that the reports of propensity-matched analyses should include descriptive assessments of matched treatment-control differences on baseline variables.When propensity matching on covariates including BMI, for example, one should report the …