Evidence map›Paper›PMID 34383925›Full record

ArticleJournal of the American Medical Informatics Association : JAMIA2021

Bias and fairness assessment of a natural language processing opioid misuse classifier: detection and mitigation of electronic health record data disadvantages across racial subgroups.

Hale M Thompson, Brihat Sharma, Sameer Bhalla, Randy Boley, Connor McCluskey, Dmitriy Dligach, Matthew M Churpek, Niranjan S Karnik, Majid Afshar

Open access · hybridAbstract read
In one paragraph

Article in Journal of the American Medical Informatics Association : JAMIA, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed, 2 pooled it
11.0field-weighted citation impact, top 1% 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

48 citing papers in PubMed, 2 syntheses or guidelines pooled it, 77 citations in OpenAlex.

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  20. Disparate Model Performance and Stability in Machine Learning Clinical Support for Diabetes and Heart Diseases.AMIA Joint Summits on Translational Science proceedings. AMIA Joint Summits on Translational Science · 2025
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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 3 institutions in 1 country.

Hale M ThompsonDepartment of Psychiatry & Behavioral Sciences, Rush University Medical Center, Chicago, Illinois, USA.
Brihat SharmaDepartment of Psychiatry & Behavioral Sciences, Rush University Medical Center, Chicago, Illinois, USA.
Sameer BhallaDepartment of Psychiatry & Behavioral Sciences, Rush University Medical Center, Chicago, Illinois, USA.
Randy BoleyDepartment of Psychiatry & Behavioral Sciences, Rush University Medical Center, Chicago, Illinois, USA.
Connor McCluskeyDepartment of Psychiatry & Behavioral Sciences, Rush University Medical Center, Chicago, Illinois, USA.
Dmitriy DligachDepartment of Computer Science, Loyola University, Chicago, Illinois, USA.
Matthew M ChurpekDepartment of Medicine, University of Wisconsin, Madison, Wisconsin, USA.
Niranjan S KarnikDepartment of Psychiatry & Behavioral Sciences, Rush University Medical Center, Chicago, Illinois, USA.
Majid AfsharDepartment of Medicine, University of Wisconsin, Madison, Wisconsin, USA.
Rush University Medical Center · USUniversity of Wisconsin–Madison · USLoyola University Chicago · US

Funding

Quantifying How Cocaine Users Respond to Fentanyl Contamination in CocaineUG1DA049467 · NIDA · UNIVERSITY OF ILLINOIS AT CHICAGO · PI Niranjan Subhash Karnik, ANTONIO A MORGAN-LOPEZ · 2019 to 2026
$11.2M
Temporal relation discovery for clinical textR01LM010090 · NLM · BOSTON CHILDREN'S HOSPITAL · PI MARTIN, JAMES H., SAVOVA, GUERGANA K. · 2010 to 2022
$7.1M
Data Driven Strategies for Substance Misuse Identification in Hospitalized PatientsR01DA051464 · NIDA · UNIVERSITY OF WISCONSIN-MADISON · PI Majid Afshar · 2020 to 2026
$4.5M
UCLA Implementation Science and Substance Use Research and Education (ISSURE) ProgramR25DA035692 · NIDA · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI TIMOTHY W FONG, GAIL E. WYATT · 2013 to 2026
$3.9M
Learning Universal Patient Representations with Hierarchical TransformersR01LM012973 · NLM · BOSTON CHILDREN'S HOSPITAL · PI Timothy A Miller · 2019 to 2026
$3.5M
PA-20-072: Supplement to A Chicago Center of Excellence in Learning Health Systems Research Training (ACCELERAT)K12HS026385 · AHRQ · NORTHWESTERN UNIVERSITY AT CHICAGO · PI FRANKLIN, PATRICIA D, KHO, ABEL N. · 2018 to 2022
$3.4M
Employing eSBI in a Community-based HIV Testing Environment for At-risk YouthR01DA041071 · NIDA · LURIE CHILDREN'S HOSPITAL OF CHICAGO · PI GAROFALO, ROBERT, KARNIK, NIRANJAN SUBHASH · 2015 to 2019
$3.2M
Repurposing misoprostol to prevent recurrence of Clostridium difficile infectionU01TR002398 · NCATS · VANDERBILT UNIVERSITY MEDICAL CENTER · PI DOSTER, RYAN S, DUBBERKE, ERIK R · 2018 to 2019
$3.1M
Sepsis Early Prediction and Subphenotype Illumination Study (SEPSIS)R01GM123193 · NIGMS · UNIVERSITY OF WISCONSIN-MADISON · PI CHURPEK, MATTHEW MICHAEL · 2017 to 2021
$1.9M
CHANGE OF GRANTEE INSTITUTION 1 K23 AA024503 Alcohol, Burn-Injury, and Acute Respiratory Distress SyndromeK23AA024503 · NIAAA · UNIVERSITY OF WISCONSIN-MADISON · PI AFSHAR, MAJID · 2016 to 2020
$948k
AHRQ HHS K12 HS026385AHRQ HHS K12-HS-026385NCATS NIH HHS U01 TR002398NCATS NIH HHS UL1-TR-002398NIAAA NIH HHS K23 AA024503NIAAA NIH HHS K23AA024503NIDA NIH HHS R01DA04171NIDA NIH HHS R01 DA051464NIDA NIH HHS R01DA051464NIDA NIH HHS R25 DA035692NIDA NIH HHS R25DA035692NIDA NIH HHS UG1 DA049467NIGMS NIH HHS R01 GM123193NIGMS NIH HHS R01GM123193NLM NIH HHS R01 LM010090NLM NIH HHS R01 LM012973NLM NIH HHS R01LM012973
6 · The paper itself

Abstract

objectivesTo assess fairness and bias of a previously validated machine learning opioid misuse classifier. MATERIALS &

methodsTwo experiments were conducted with the classifier's original (n = 1000) and external validation (n = 53 974) datasets from 2 health systems. Bias was assessed via testing for differences in type II error rates across racial/ethnic subgroups (Black, Hispanic/Latinx, White, Other) using bootstrapped 95% confidence intervals. A local surrogate model was estimated to interpret the classifier's predictions by race and averaged globally from the datasets. Subgroup analyses and post-hoc recalibrations were conducted to attempt to mitigate biased metrics.

resultsWe identified bias in the false negative rate (FNR = 0.32) of the Black subgroup compared to the FNR (0.17) of the White subgroup. Top features included "heroin" and "substance abuse" across subgroups. Post-hoc recalibrations eliminated bias in FNR with minimal changes in other subgroup error metrics. The Black FNR subgroup had higher risk scores for readmission and mortality than the White FNR subgroup, and a higher mortality risk score than the Black true positive subgroup (P < .05). DISCUSSION: The Black FNR subgroup had the greatest severity of disease and risk for poor outcomes. Similar features were present between subgroups for predicting opioid misuse, but inequities were present. Post-hoc mitigation techniques mitigated bias in type II error rate without creating substantial type I error rates. From model design through deployment, bias and data disadvantages should be systematically addressed.

conclusionStandardized, transparent bias assessments are needed to improve trustworthiness in clinical machine learning models.

Indexed as

Natural Language ProcessingOpioid-Related DisordersElectronic Health RecordsHispanic or LatinoHumansMachine Learningbias and fairnessinterpretabilitymachine learningnatural language processingopioid use disorderstructural racism

Identifiers

PMID34383925
PMCPMC8510285
OpenAlexW3189722576

What OpenQuestion holds

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Registered trials

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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.