Peter C. Austin

Socioeconomic Status and Mortality after Acute Myocardial Infarction

Age, past cardiovascular events, and current vascular risk factors accounted for most of the income-mortality gradient after acute MI. This observation suggests that the "wealth...

Balance diagnostics for comparing the distribution of baseline covariates between treatment groups in propensity‐score matched samples

Abstract The propensity score is a subject's probability of treatment, conditional on observed baseline covariates. Conditional on the true propensity score, treated and untreat...

A critical appraisal of propensity‐score matching in the medical literature between 1996 and 2003

Abstract Propensity‐score methods are increasingly being used to reduce the impact of treatment‐selection bias in the estimation of treatment effects using observational data. C...

A comparison of the ability of different propensity score models to balance measured variables between treated and untreated subjects: a Monte Carlo study

Abstract The propensity score—the probability of exposure to a specific treatment conditional on observed variables—is increasingly being used in observational studies. Creating...

Some Methods of Propensity‐Score Matching had Superior Performance to Others: Results of an Empirical Investigation and Monte Carlo simulations

Abstract Propensity‐score matching is increasingly being used to reduce the impact of treatment‐selection bias when estimating causal treatment effects using observational data....

Propensity-score matching in the cardiovascular surgery literature from 2004 to 2006: A systematic review and suggestions for improvement

A comparison of propensity score methods: a case‐study estimating the effectiveness of post‐AMI statin use

Abstract There is an increasing interest in the use of propensity score methods to estimate causal effects in observational studies. However, recent systematic reviews have demo...

Propensity score methods gave similar results to traditional regression modeling in observational studies: a systematic review

Type I Error Rates, Coverage of Confidence Intervals, and Variance Estimation in Propensity-Score Matched Analyses

Propensity-score matching is frequently used in the medical literature to reduce or eliminate the effect of treatment selection bias when estimating the effect of treatments or ...

A comparison of regression trees, logistic regression, generalized additive models, and multivariate adaptive regression splines for predicting AMI mortality

Abstract Clinicians and health service researchers are frequently interested in predicting patient‐specific probabilities of adverse events (e.g. death, disease recurrence, post...

Primer on Statistical Interpretation or Methods Report Card on Propensity-Score Matching in the Cardiology Literature From 2004 to 2006

Background— Propensity-score matching is frequently used in the cardiology literature. Recent systematic reviews have found that this method is, in general, poorly implemented i...

Missed opportunities in the secondary prevention of myocardial infarction: An assessment of the effects of statin underprescribing on mortality

Comparing Clinical Data with Administrative Data for Producing Acute Myocardial Infarction Report Cards

Summary We compared measures of hospital performance by using both administrative and clinical data sources. Hospital-specific mortality outcomes on 10086 patients who had been ...

Effect of Age on Stroke Prevention Therapy in Patients With Atrial Fibrillation

Background and Purpose— Stroke risk increases with age in patients who have nonvalvular atrial fibrillation. It is uncertain whether the efficacy of stroke prevention therapies ...