Evidence map›Paper›PMID 34903098›Full record

SynthesisStatistical methods in medical research2022

Modeling treatment effect modification in multidrug-resistant tuberculosis in an individual patientdata meta-analysis.

Yan Liu, Mireille E Schnitzer, Guanbo Wang, Edward Kennedy, Piret Viiklepp, Mario H Vargas, Giovanni Sotgiu, Dick Menzies, Andrea Benedetti

Open access · greenAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Statistical methods in medical research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
1.2field-weighted citation impact, top 21% of its field
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

4 citing papers in PubMed, 7 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 7 institutions in 5 countries.

Yan LiuDepartment of Epidemiology, Biostatistics and Occupational Health, 5620McGill University, Canada.ORCID 0000-0001-8835-0467
Mireille E SchnitzerFaculty of Pharmacy, 5622Université de Montréal, Canada.ORCID 0000-0001-8049-9646
Guanbo WangDepartment of Epidemiology, Biostatistics and Occupational Health, 5620McGill University, Canada.
Edward KennedyDepartment of Statistics & Data Science, 6612Carnegie Mellon University, USA.
Piret ViikleppNational Institute for Health Development, Estonia.
Mario H Vargas42635Instituto Nacional de Enfermedades Respiratorias, Mexico.
Giovanni SotgiuClinical Epidemiology and Medical Statistics Unit, Department of Medical, Surgical and Experimental Sciences, University of Sassari, Italy.
Dick MenziesRespiratory Epidemiology and Clinical Research Unit, 54473Centre for Outcomes Research & Evaluation, Research Institute of the McGill University Health Centre, Montréal, Canada.
Andrea BenedettiDepartment of Epidemiology, Biostatistics and Occupational Health, 5620McGill University, Canada.ORCID 0000-0002-8314-9497
McGill University · CAMcGill University Health Centre · CACarnegie Mellon University · USInstituto Nacional de Enfermedades Respiratorias · MXNational Institute for Health Development · EEUniversité de Montréal · CAUniversity of Sassari · IT

Funding

CIHR
6 · The paper itself

Abstract

Effect modification occurs while the effect of the treatment is not homogeneous across the different strata of patient characteristics. When the effect of treatment may vary from individual to individual, precision medicine can be improved by identifying patient covariates to estimate the size and direction of the effect at the individual level. However, this task is statistically challenging and typically requires large amounts of data. Investigators may be interested in using the individual patient data from multiple studies to estimate these treatment effect models. Our data arise from a systematic review of observational studies contrasting different treatments for multidrug-resistant tuberculosis, where multiple antimicrobial agents are taken concurrently to cure the infection. We propose a marginal structural model for effect modification by different patient characteristics and co-medications in a meta-analysis of observational individual patient data. We develop, evaluate, and apply a targeted maximum likelihood estimator for the doubly robust estimation of the parameters of the proposed marginal structural model in this context. In particular, we allow for differential availability of treatments across studies, measured confounding within and across studies, and random effects by study.

Indexed as

Tuberculosis, Multidrug-ResistantBiometryHumansObservational Studies as TopicConditional average treatment effectdouble robustnessindividual patient datamarginal structural modelmeta-analysismultidrug-resistant tuberculosistargeted maximum likelihood estimation

Identifiers

PMID34903098
PMCPMC8961254
OpenAlexW3120262376

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.