Evidence map›Paper›PMID 33448306›Full record

ArticleJournal of the American Medical Informatics Association : JAMIA2021

Enabling realistic health data re-identification risk assessment through adversarial modeling.

Weiyi Xia, Yongtai Liu, Zhiyu Wan, Yevgeniy Vorobeychik, Murat Kantacioglu, Steve Nyemba, Ellen Wright Clayton, Bradley A Malin

Abstract 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 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing 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.

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

16 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Privacy-Enhancing Technologies in Biomedical Data Science.Annual review of biomedical data science · 2024
    Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Managing re-identification risks while providing access to the All of Us research program.Journal of the American Medical Informatics Association : JAMIA · 2023
    Article
  14. Review
  15. Article
  16. 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

8 authors.

Weiyi XiaDepartment of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, Tennessee, USA.
Yongtai LiuCenter for Genetic Privacy and Identity in Community Settings, Vanderbilt University Medical Center, Nashville, Tennessee, USA.
Zhiyu WanCenter for Genetic Privacy and Identity in Community Settings, Vanderbilt University Medical Center, Nashville, Tennessee, USA.
Yevgeniy VorobeychikCenter for Genetic Privacy and Identity in Community Settings, Vanderbilt University Medical Center, Nashville, Tennessee, USA.
Murat KantaciogluDepartment of Computer Science, University of Texas at Dallas, Dallas, Texas, USA.
Steve NyembaDepartment of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, Tennessee, USA.
Ellen Wright ClaytonCenter for Genetic Privacy and Identity in Community Settings, Vanderbilt University Medical Center, Nashville, Tennessee, USA.
Bradley A MalinDepartment of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, Tennessee, USA.

Funding

Enhancing All of Us Data Resources for Nutrition Precision Health: the All of Us Data and Research CenterU2COD023196 · OD · VANDERBILT UNIVERSITY MEDICAL CENTER · PI GLAZER, DAVID, HARRIS, PAUL A. · 2016 to 2022
$143.7M
Vanderbilt Biomedical Informatics Training ProgramT15LM007450 · NLM · VANDERBILT UNIVERSITY · PI Jessica S. Ancker, Bradley A. Malin · 2002 to 2026
$19.7M
Genetic Privacy and Identity in Community Settings - GetPreCiSeRM1HG009034 · NHGRI · VANDERBILT UNIVERSITY MEDICAL CENTER · PI CLAYTON, ELLEN WRIGHT, MALIN, BRADLEY A. · 2016 to 2024
$8.3M
A Risk Management Framework for Identifiability in Genomics ResearchR01HG006844 · NHGRI · VANDERBILT UNIVERSITY MEDICAL CENTER · PI MALIN, BRADLEY A. · 2012 to 2019
$2.4M
NHGRI NIH HHS R01 HG006844NHGRI NIH HHS RM1 HG009034NIH HHS U2C OD023196NLM NIH HHS T15 LM007450
6 · The paper itself

Abstract

objectiveRe-identification risk methods for biomedical data often assume a worst case, in which attackers know all identifiable features (eg, age and race) about a subject. Yet, worst-case adversarial modeling can overestimate risk and induce heavy editing of shared data. The objective of this study is to introduce a framework for assessing the risk considering the attacker's resources and capabilities. MATERIALS AND

methodsWe integrate 3 established risk measures (ie, prosecutor, journalist, and marketer risks) and compute re-identification probabilities for data subjects. This probability is dependent on an attacker's capabilities (eg, ability to obtain external identified resources) and the subject's decision on whether to reveal their participation in a dataset. We illustrate the framework through case studies using data from over 1 000 000 patients from Vanderbilt University Medical Center and show how re-identification risk changes when attackers are pragmatic and use 2 known resources for attack: (1) voter registration lists and (2) social media posts.

resultsOur framework illustrates that the risk is substantially smaller in the pragmatic scenarios than in the worst case. Our experiments yield a median worst-case risk of 0.987 (where 0 is least risky and 1 is most risky); however, the median reduction in risk was 90.1% in the voter registration scenario and 100% in the social media posts scenario. Notably, these observations hold true for a wide range of adversarial capabilities.

conclusionsThis research illustrates that re-identification risk is situationally dependent and that appropriate adversarial modeling may permit biomedical data sharing on a wider scale than is currently the case.

Indexed as

Computer SecurityConfidentialityData AnonymizationProbabilityHumansRiskRisk Assessmentdata privacydata sharinghealth datare-identification risk

Identifiers

PMID33448306
PMCPMC8711654

What OpenQuestion holds

Textmetadata
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.