Evidence map›Paper›PMID 24928177›Full record

ArticleJournal of the American Medical Informatics Association : JAMIA

Applying MetaMap to Medline for identifying novel associations in a large clinical dataset: a feasibility analysis.

David A Hanauer, Mohammed Saeed, Kai Zheng, Qiaozhu Mei, Kerby Shedden, Alan R Aronson, Naren Ramakrishnan

Abstract read
In one paragraph

Article in Journal of the American Medical Informatics Association : JAMIA. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing 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

13 citing papers in PubMed.

  1. The intersection of COVID-19 and autoimmunity.The Journal of clinical investigation · 2021
    Review
  2. Article
  3. Article
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  6. Article
  7. Article
  8. Article
  9. Interpretable Topic Features for Post-ICU Mortality Prediction.AMIA ... Annual Symposium proceedings. AMIA Symposium · 2016
    Article
  10. Identifying Plant-Human Disease Associations in Biomedical Literature: A Case Study.AMIA Joint Summits on Translational Science proceedings. AMIA Joint Summits on Translational Science · 2016
    Article
  11. Article
  12. Article
  13. 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

7 authors.

David A HanauerDepartment of Pediatrics, University of Michigan Medical School, Ann Arbor, Michigan, USA.
Mohammed SaeedDepartment of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA.
Kai ZhengDepartment of Health Management and Policy, University of Michigan School of Public Health, Ann Arbor, Michigan, USA School of Information, University of Michigan, Ann Arbor, Michigan, USA.
Qiaozhu MeiSchool of Information, University of Michigan, Ann Arbor, Michigan, USA Department of Electronic Engineering and Computer Science, University of Michigan, Ann Arbor, Michigan, USA.
Kerby SheddenCenter for Statistical Consultation and Research, University of Michigan, Ann Arbor, Michigan, USA.
Alan R AronsonLister Hill Center, National Library of Medicine, Bethesda, Maryland, USA.
Naren RamakrishnanDepartment of Computer Science, Discovery Analytics Center, Virginia Tech, Arlington, Virginia, USA.

Funding

XenograftP30CA046592 · NCI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI Alexey I Nesvizhskii · 1988 to 2026
$178.2M
Michigan Institute for Clinical and Health Research (MCHR)UL1TR000433 · NCATS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI MASHOUR, GEORGE ALEXANDER · 2012 to 2016
$49.9M
NCATS NIH HHS UL1 TR000433NCATS NIH HHS UL1TR000433NCI NIH HHS P30 CA046592
6 · The paper itself

Abstract

objectiveWe describe experiments designed to determine the feasibility of distinguishing known from novel associations based on a clinical dataset comprised of International Classification of Disease, V.9 (ICD-9) codes from 1.6 million patients by comparing them to associations of ICD-9 codes derived from 20.5 million Medline citations processed using MetaMap. Associations appearing only in the clinical dataset, but not in Medline citations, are potentially novel.

methodsPairwise associations of ICD-9 codes were independently identified in both the clinical and Medline datasets, which were then compared to quantify their degree of overlap. We also performed a manual review of a subset of the associations to validate how well MetaMap performed in identifying diagnoses mentioned in Medline citations that formed the basis of the Medline associations.

resultsThe overlap of associations based on ICD-9 codes in the clinical and Medline datasets was low: only 6.6% of the 3.1 million associations found in the clinical dataset were also present in the Medline dataset. Further, a manual review of a subset of the associations that appeared in both datasets revealed that co-occurring diagnoses from Medline citations do not always represent clinically meaningful associations. DISCUSSION: Identifying novel associations derived from large clinical datasets remains challenging. Medline as a sole data source for existing knowledge may not be adequate to filter out widely known associations.

conclusionsIn this study, novel associations were not readily identified. Further improvements in accuracy and relevance for tools such as MetaMap are needed to realize their expected utility.

Indexed as

Data MiningInternational Classification of DiseasesMEDLINEUnified Medical Language SystemFeasibility StudiesHumansNatural Language ProcessingData MiningElectronic Health RecordsInternational Classification of DiseasesMedlineNatural Language ProcessingUnified Medical Language System

Identifiers

PMID24928177
PMCPMC4147617

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.