Evidence map›Paper›PMID 22550953›Full record

ArticleBiometrics2012

A robust method for estimating optimal treatment regimes.

Baqun Zhang, Anastasios A Tsiatis, Eric B Laber, Marie Davidian

Abstract read
In one paragraph

Article in Biometrics, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 181 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
181citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

181 citing papers in PubMed, 1 synthesis or guideline pooled it.

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121 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors.

Baqun ZhangDepartment of Statistics, North Carolina State University, Raleigh, NC 27695-8203, USA. bzhang4@ncsu.edu
Anastasios A Tsiatis
Eric B Laber
Marie Davidian

Funding

Statistical Methods for Cancer Clinical TrialsP01CA142538 · NCI · UNIV OF NORTH CAROLINA CHAPEL HILL · PI DAVIDIAN, MARIE, KOSOROK, MICHAEL R · 2010 to 2019
$21.3M
Statistical Methods for AIDS Clinical TrialsR37AI031789 · NIAID · NORTH CAROLINA STATE UNIVERSITY RALEIGH · PI TSIATIS, ANASTASIOS A · 2003 to 2012
$3.2M
Flexible Statistical Methods for Biomedical DataR01CA085848 · NCI · NORTH CAROLINA STATE UNIVERSITY RALEIGH · PI DAVIDIAN, MARIE · 2000 to 2015
$3.1M
STATISTICAL ANALYSIS OF TIME-TO-EVENT DATA IN CANCERR01CA051962 · NCI · NORTH CAROLINA STATE UNIVERSITY RALEIGH · PI TSIATIS, ANASTASIOS A · 1990 to 2010
$2.2M
NCI NIH HHS P01 CA142538NCI NIH HHS R01 CA051962NCI NIH HHS R01 CA085848NIAID NIH HHS R37 AI031789
6 · The paper itself

Abstract

A treatment regime is a rule that assigns a treatment, among a set of possible treatments, to a patient as a function of his/her observed characteristics, hence "personalizing" treatment to the patient. The goal is to identify the optimal treatment regime that, if followed by the entire population of patients, would lead to the best outcome on average. Given data from a clinical trial or observational study, for a single treatment decision, the optimal regime can be found by assuming a regression model for the expected outcome conditional on treatment and covariates, where, for a given set of covariates, the optimal treatment is the one that yields the most favorable expected outcome. However, treatment assignment via such a regime is suspect if the regression model is incorrectly specified. Recognizing that, even if misspecified, such a regression model defines a class of regimes, we instead consider finding the optimal regime within such a class by finding the regime that optimizes an estimator of overall population mean outcome. To take into account possible confounding in an observational study and to increase precision, we use a doubly robust augmented inverse probability weighted estimator for this purpose. Simulations and application to data from a breast cancer clinical trial demonstrate the performance of the method.

Indexed as

Decision Support Systems, ClinicalModels, StatisticalBreast NeoplasmsClinical Trials as TopicComputer SimulationFemaleHumansOutcome Assessment, Health CarePrevalenceRegression AnalysisTreatment Outcome

Identifiers

PMID22550953
PMCPMC3556998

What OpenQuestion holds

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LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.