Evidence map›Paper›PMID 22195139›Full record

ArticleAMIA ... Annual Symposium proceedings. AMIA Symposium2011

Modeling drug exposure data in electronic medical records: an application to warfarin.

Mei Liu, Min Jiang, Vivian K Kawai, Charles M Stein, Dan M Roden, Joshua C Denny, Hua Xu

Open access · greenAbstract read
In one paragraph

Article in AMIA ... Annual Symposium proceedings. AMIA Symposium, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
0.7field-weighted citation impact, top 33% 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

14 citing papers in PubMed, 18 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Article
  5. Toward Understanding Clinical Context of Medication Change Events in Clinical Narratives.AMIA ... Annual Symposium proceedings. AMIA Symposium · 2021
    Article
  6. Article
  7. Article
  8. Review
  9. A comparative study of different methods for automatic identification of clopidogrel-induced bleedings in electronic health records.AMIA Joint Summits on Translational Science proceedings. AMIA Joint Summits on Translational Science · 2017
    Article
  10. Secondary use of clinical data: the Vanderbilt approach.Journal of biomedical informatics · 2014
    Article
  11. Article
  12. Annotating temporal information in clinical narratives.Journal of biomedical informatics · 2013
    Article
  13. Review
  14. Temporal reasoning over clinical text: the state of the art.Journal of the American Medical Informatics Association : JAMIA
    Review
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 at 1 institution in 1 country.

Mei LiuDepartment of Biomedical Informatics, Vanderbilt University, School of Medicine, Nashville, TN, USA.
Min Jiang
Vivian K Kawai
Charles M Stein
Dan M Roden
Joshua C Denny
Hua Xu
Vanderbilt University · US

Funding

VANDERBILT UNIVERSITY CTSA FOR PEDIATRIC RESEARCHUL1RR024975 · NCRR · VANDERBILT UNIVERSITY · PI BERNARD, GORDON RAPHAEL · 2007 to 2011
$45.7M
Vanderbilt Biomedical Informatics Training ProgramT15LM007450 · NLM · VANDERBILT UNIVERSITY · PI Jessica S. Ancker, Bradley A. Malin · 2002 to 2026
$19.7M
Pharmacogenomics of Arrhythmia TherapyU19HL065962 · NHLBI · VANDERBILT UNIVERSITY MEDICAL CENTER · PI RODEN, DAN M · 2010 to 2014
$17.4M
An in-silico method for epidemiological studies using Electronic Medical RecordsR01CA141307 · NCI · VANDERBILT UNIVERSITY · PI XU, HUA · 2009 to 2012
$1.0M
NCI NIH HHS R01 CA141307NCI NIH HHS R01CA141307NCRR NIH HHS 1UL1RR024975-01NCRR NIH HHS UL1 RR024975NHLBI NIH HHS U19 HL065962NHLBI NIH HHS U19HL065962NLM NIH HHS 3T15LM007450-08S1NLM NIH HHS T15 LM007450
6 · The paper itself

Abstract

Identification of patients' drug exposure information is critical to drug-related research that is based on electronic medical records (EMRs). Drug information is often embedded in clinical narratives and drug regimens change frequently because of various reasons like intolerance or insurance issues, making accurate modeling challenging. Here, we developed an informatics framework to determine patient drug exposure histories from EMRs by combining natural language processing (NLP) and machine learning (ML) technologies. Our framework consists of three phases: 1) drug entity recognition - identifying drug mentions; 2) drug event detection - labeling drug mentions with a status (e.g., "on" or "stop"); and 3) drug exposure modeling - predicting if a patient is taking a drug at a given time using the status and temporal information associated with the mentions. We applied the framework to determine patient warfarin exposure at hospital admissions and achieved 87% precision, 79% recall, and an area under the receiver-operator characteristic curve of 0.93.

Indexed as

Artificial IntelligenceElectronic Health RecordsNatural Language ProcessingHospitalizationHumansMedical Records Systems, ComputerizedModels, TheoreticalWarfarinWarfarin

Identifiers

PMID22195139
PMCPMC3243123
OpenAlexW120687998

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.