2025
Identification and multiply robust estimation in causal mediation analysis across principal strata
Cheng C, Li F. Identification and multiply robust estimation in causal mediation analysis across principal strata. Journal Of The Royal Statistical Society Series B Statistical Methodology 2025, qkaf037. DOI: 10.1093/jrsssb/qkaf037.Peer-Reviewed Original ResearchRobust estimationPrincipal strataJoint potential valuesEfficient influence functionNuisance modelsData examplesEfficient estimationInfluence functionIdentification assumptionsEfficient inferenceEstimationInferenceMisspecificationEstimandsCausal mediation analysisExamplesAssumptionsPosttreatment events
2024
Inverting estimating equations for causal inference on quantiles
Cheng C, Li F. Inverting estimating equations for causal inference on quantiles. Biometrika 2024, 112: asae058. DOI: 10.1093/biomet/asae058.Peer-Reviewed Original ResearchDoubly robust estimation and sensitivity analysis for marginal structural quantile models
Cheng C, Hu L, Li F. Doubly robust estimation and sensitivity analysis for marginal structural quantile models. Biometrics 2024, 80: ujae045. PMID: 38884127, DOI: 10.1093/biomtc/ujae045.Peer-Reviewed Original ResearchConceptsQuantile modelDistribution of potential outcomesEfficient influence functionPotential outcome distributionsDoubly robust estimatorsTime-varying treatmentsSequential ignorability assumptionSemiparametric frameworkIgnorability assumptionVariance estimationOutcome distributionInfluence functionRobust estimationPotential outcomesEfficient computationFunction approachTime-varying confoundersElectronic health record dataEstimationTreatment assignmentHealth record dataEffect of antihypertensive medicationEquationsRecord dataAntihypertensive medications
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