Evidence map›Paper›PMID 31218780›Full record

ArticlePharmacoepidemiology and drug safety2019

Using natural language processing of clinical text to enhance identification of opioid-related overdoses in electronic health records data.

Brian Hazlehurst, Carla A Green, Nancy A Perrin, John Brandes, David S Carrell, Andrew Baer, Angela DeVeaugh-Geiss, Paul M Coplan

Open access · hybridAbstract readValidation Study
In one paragraph

Article in Pharmacoepidemiology and drug safety, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 3 pooled it
5.1field-weighted citation impact, top 5% 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

27 citing papers in PubMed, 3 syntheses or guidelines pooled it, 33 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Article
  5. Review
  6. Review
  7. Article
  8. Article
  9. Article
  10. Detecting Opioid Use Disorder in Health Claims Data With Positive Unlabeled Learning.IEEE journal of biomedical and health informatics · 2025
    Article
  11. Review
  12. Identifying Opioid Overdose and Opioid Use Disorder and Related Information from Clinical Narratives Using Large Language Models.AMIA Joint Summits on Translational Science proceedings. AMIA Joint Summits on Translational Science · 2025
    Article
  13. Article
  14. Health Equity in Clinical Research Informatics.Yearbook of medical informatics · 2023
    Review
  15. Article
  16. Article
  17. Article
  18. Using Natural Language Processing of Clinical Notes to Predict Outcomes of Opioid Treatment Program.Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference · 2022
    Article
  19. Comparative Analysis of Patient Distress in Opioid Treatment Programs using Natural Language Processing.Biomedical engineering systems and technologies, international joint conference, BIOSTEC ... revised selected papers. BIOSTEC (Conference) · 2022
    Article
  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

8 authors at 4 institutions in 1 country.

Brian HazlehurstCenter for Health Research, Kaiser Permanente Northwest, Portland, OR.ORCID 0000-0001-9365-3964
Carla A GreenCenter for Health Research, Kaiser Permanente Northwest, Portland, OR.ORCID 0000-0002-0000-4381
Nancy A PerrinCenter for Health Research, Kaiser Permanente Northwest, Portland, OR.ORCID 0000-0002-2025-6543
John BrandesCenter for Health Research, Kaiser Permanente Northwest, Portland, OR.
David S CarrellHealth Research Institute, Kaiser Permanente Washington, Seattle, WA.ORCID 0000-0002-8471-0928
Andrew BaerGroup Health Research Institute, Group Health Cooperative, Seattle, WA.
Angela DeVeaugh-GeissEpidemiology, Medical Affairs, Purdue Pharma, LP, Stamford, CT.
Paul M CoplanEpidemiology, Medical Affairs, Purdue Pharma, LP, Stamford, CT.
Kaiser Permanente Center for Health Research · USJohnson & Johnson (United States) · USGroup Health Cooperative · USKaiser Permanente Washington Health Research Institute · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo enhance automated methods for accurately identifying opioid-related overdoses and classifying types of overdose using electronic health record (EHR) databases.

methodsWe developed a natural language processing (NLP) software application to code clinical text documentation of overdose, including identification of intention for self-harm, substances involved, substance abuse, and error in medication usage. Using datasets balanced with cases of suspected overdose and records of individuals at elevated risk for overdose, we developed and validated the application using Kaiser Permanente Northwest data, then tested portability of the application using Kaiser Permanente Washington data. Datasets were chart-reviewed to provide a gold standard for comparison and evaluation of the automated method.

resultsThe method performed well in identifying overdose (sensitivity = 0.80, specificity = 0.93), intentional overdose (sensitivity = 0.81, specificity = 0.98), and involvement of opioids (excluding heroin, sensitivity = 0.72, specificity = 0.96) and heroin (sensitivity = 0.84, specificity = 1.0). The method performed poorly at identifying adverse drug reactions and overdose due to patient error and fairly at identifying substance abuse in opioid-related unintentional overdose (sensitivity = 0.67, specificity = 0.96). Evaluation using validation datasets yielded significant reductions, in specificity and negative predictive values only, for many classifications mentioned above. However, these measures remained above 0.80, thus, performance observed during development was largely maintained during validation. Similar results were obtained when evaluating portability, although there was a significant reduction in sensitivity for unintentional overdose that was attributed to missing text clinical notes in the database.

conclusionsMethods that process text clinical notes show promise for improving accuracy and fidelity at identifying and classifying overdoses according to type using EHR data.

Indexed as

Natural Language ProcessingAnalgesics, OpioidDatasets as TopicDrug OverdoseElectronic Health RecordsHeroinHumansOpioid-Related DisordersPredictive Value of TestsRiskSelf-Injurious BehaviorSensitivity and SpecificityWashingtonAnalgesics, OpioidHeroinelectronic health recordsmethodsnatural language processingopioid overdosepharmacoepidemiology

Identifiers

PMID31218780
PMCPMC6772185
OpenAlexW2950053978

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.