Package: SAMTx 0.3.0

Jiayi Ji

SAMTx: Sensitivity Assessment to Unmeasured Confounding with Multiple Treatments

A sensitivity analysis approach for unmeasured confounding in observational data with multiple treatments and a binary outcome. This approach derives the general bias formula and provides adjusted causal effect estimates in response to various assumptions about the degree of unmeasured confounding. Nested multiple imputation is embedded within the Bayesian framework to integrate uncertainty about the sensitivity parameters and sampling variability. Bayesian Additive Regression Model (BART) is used for outcome modeling. The causal estimands are the conditional average treatment effects (CATE) based on the risk difference. For more details, see paper: Hu L et al. (2020) A flexible sensitivity analysis approach for unmeasured confounding with multiple treatments and a binary outcome with application to SEER-Medicare lung cancer data <arxiv:2012.06093>.

Authors:Liangyuan Hu [aut], Jungang Zou [aut], Jiayi Ji [aut, cre]

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Exports:sensitivity_analysis

Dependencies:BARTlatticeMatrixnlmeRcppsurvival