Technical Note: Targeted Maximum Likelihood Estimator for an ATE Standardized for New Target Population

Fuente: arXiv
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Autori principali: van der Laan, Mark, Gruber, Susan
Natura: Preprint
Pubblicazione: 2025
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author van der Laan, Mark
Gruber, Susan
author_facet van der Laan, Mark
Gruber, Susan
contents In this technical note we present a targeted maximum likelihood estimator (TMLE) for a previously studied target parameter that aims to transport an average treatment effect (ATE) on a clinical outcome in a source population to what the ATE would have been in another target population. It is assumed that one only observes baseline covariates in the target population, while we assume that one can learn the conditional treatment effect on the outcome of interest in the source population. We also allow that one might observe only a subset of the covariates in the target population while all covariates are measured in the source population. We consider the case that the outcome is a clinical outcome at some future time point that is subject to missingness, or that our outcome of interest is a time to event that is subject to right-censoring. We derive the canonical gradients and present the corresponding TMLEs for these two cases.
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id arxiv_https___arxiv_org_abs_2501_06381
institution arXiv
publishDate 2025
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spellingShingle Technical Note: Targeted Maximum Likelihood Estimator for an ATE Standardized for New Target Population
van der Laan, Mark
Gruber, Susan
Methodology
In this technical note we present a targeted maximum likelihood estimator (TMLE) for a previously studied target parameter that aims to transport an average treatment effect (ATE) on a clinical outcome in a source population to what the ATE would have been in another target population. It is assumed that one only observes baseline covariates in the target population, while we assume that one can learn the conditional treatment effect on the outcome of interest in the source population. We also allow that one might observe only a subset of the covariates in the target population while all covariates are measured in the source population. We consider the case that the outcome is a clinical outcome at some future time point that is subject to missingness, or that our outcome of interest is a time to event that is subject to right-censoring. We derive the canonical gradients and present the corresponding TMLEs for these two cases.
title Technical Note: Targeted Maximum Likelihood Estimator for an ATE Standardized for New Target Population
topic Methodology
url https://arxiv.org/abs/2501.06381