Cost-effectiveness of open versus laparoscopic appendectomy: a multilevel approach with propensity score matching

The central role of the propensity score in observational studies for causal effects

Paul R. Rosenbaum, Donald B. Rubin · Biometrika · 1983 · 31K citations · Full text

Public Health, Biostatistics, Causal Inference +16

Coding Algorithms for Defining Comorbidities in ICD-9-CM and ICD-10 Administrative Data

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Adapting a clinical comorbidity index for use with ICD-9-CM administrative databases

Richard A. Deyo · Journal of Clinical Epidemiology · 1992 · 10.5K citations

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Propensity score methods for bias reduction in the comparison of a treatment to a non-randomized control group

Ralph B. D’Agostino · Statistics in Medicine · 1998 · 5.4K citations

Public Health, Biostatistics, Causal Inference +16

Matching as Nonparametric Preprocessing for Reducing Model Dependence in Parametric Causal Inference

Daniel E. Ho, Kosuke Imai, Gary King et al. · Political Analysis · 2007 · 4.3K citations · Full text

Public Health, Biostatistics, Causal Inference +15