Evidence map›Paper›PMID 28384841›Full record

ArticleStatistics in medicine2018

Constrained binary classification using ensemble learning: an application to cost-efficient targeted PrEP strategies.

Wenjing Zheng, Laura Balzer, Mark van der Laan, Maya Petersen, SEARCH Collaboration

Registry-linked trialAbstract read
In one paragraph

Article in Statistics in medicine, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01864603 (Sustainable East Africa Research in Community Health), which is not on this map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
–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.

NCT01864603 nacompletednot on this map

Sustainable East Africa Research in Community Health

TypeinterventionalSponsorUniversity of California, San FranciscoRan2013 to 2021Enrolled150,395ConditionsHIV, Tuberculosis, Hypertension, DiabetesArmsUniversal ART in a streamlined care model, Annual Community Health Campaigns, Targeted PrEP and Targeted testing interventions, Baseline community-based HIV and multi-disease testing
3 · Its place in the literature

Who cites it

25 citing papers in PubMed.

  1. Trial
  2. Trial
  3. Early Adopters of Human Immunodeficiency Virus Preexposure Prophylaxis in a Population-based Combination Prevention Study in Rural Kenya and Uganda.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2018
    Trial
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. The role of machine learning in HIV risk prediction.Frontiers in reproductive health · 2022
    Article
  10. Article
  11. Revisiting performance metrics for prediction with rare outcomes.Statistical methods in medical research · 2021
    Article
  12. Article
  13. Article
  14. Machine Learning to Identify Persons at High-Risk of Human Immunodeficiency Virus Acquisition in Rural Kenya and Uganda.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2020
    Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Observational
  20. 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

5 authors.

Wenjing ZhengDivision of Biostatistics, School of Public Health, University of California, Berkeley, CA, U.S.A.ORCID http://orcid.org/0000-0002-6584-1359
Laura BalzerDepartment of Biostatistics, Havard T.H. Chan School of Public Health, Boston, MA, U.S.A.ORCID http://orcid.org/0000-0002-3730-410X
Mark van der LaanDivision of Biostatistics, School of Public Health, University of California, Berkeley, CA, U.S.A.
Maya PetersenDivision of Biostatistics, School of Public Health, University of California, Berkeley, CA, U.S.A.
SEARCH CollaborationDivision of Biostatistics, School of Public Health, University of California, Berkeley, CA, U.S.A.

Funding

Reducing Failure-to-Initiate ART: Streamlined ART Start Strategy (START)U01AI099959 · NIAID · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI HAVLIR, DIANE V · 2012 to 2016
$39.7M
TRAINEESHIPS IN AIDS PREVENTION STUDIEST32MH019105 · NIMH · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI Carol Suzanne Camlin, Glenn-Milo Santos · 1989 to 2026
$15.3M
Targeted Learning using adaptive designs for HIV Epidemic control in East AfricaR01AI074345 · NIAID · UNIVERSITY OF CALIFORNIA BERKELEY · PI PETERSEN, MAYA LIV, VANDERLAAN, MARK J · 2007 to 2023
$6.6M
NIAID NIH HHS R01 AI074345NIAID NIH HHS U01 AI099959NIMH NIH HHS T32 MH019105
6 · The paper itself

Abstract

Binary classification problems are ubiquitous in health and social sciences. In many cases, one wishes to balance two competing optimality considerations for a binary classifier. For instance, in resource-limited settings, an human immunodeficiency virus prevention program based on offering pre-exposure prophylaxis (PrEP) to select high-risk individuals must balance the sensitivity of the binary classifier in detecting future seroconverters (and hence offering them PrEP regimens) with the total number of PrEP regimens that is financially and logistically feasible for the program. In this article, we consider a general class of constrained binary classification problems wherein the objective function and the constraint are both monotonic with respect to a threshold. These include the minimization of the rate of positive predictions subject to a minimum sensitivity, the maximization of sensitivity subject to a maximum rate of positive predictions, and the Neyman-Pearson paradigm, which minimizes the type II error subject to an upper bound on the type I error. We propose an ensemble approach to these binary classification problems based on the Super Learner methodology. This approach linearly combines a user-supplied library of scoring algorithms, with combination weights and a discriminating threshold chosen to minimize the constrained optimality criterion. We then illustrate the application of the proposed classifier to develop an individualized PrEP targeting strategy in a resource-limited setting, with the goal of minimizing the number of PrEP offerings while achieving a minimum required sensitivity. This proof of concept data analysis uses baseline data from the ongoing Sustainable East Africa Research in Community Health study. Copyright © 2017 John Wiley & Sons, Ltd.

Indexed as

AlgorithmsBiostatisticsCost-Benefit AnalysisDatabases, FactualFemaleHIV InfectionsHumansMachine LearningMaleModels, StatisticalPrecision MedicinePre-Exposure ProphylaxisRisk FactorsUgandaconstrained binary classificationensemble classification, cross-validationNeyman-Pearson, sensitivityPrEPrate of positive predictionsSuper Learner

Identifiers

PMID28384841
PMCPMC5701877

What OpenQuestion holds

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Registered trials

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.