Evidence map›Paper›PMID 31562516›Full record

ArticleJournal of the American Medical Informatics Association : JAMIA2019

Cohort selection for clinical trials: n2c2 2018 shared task track 1.

Amber Stubbs, Michele Filannino, Ergin Soysal, Samuel Henry, Özlem Uzuner

Abstract read
In one paragraph

Article in Journal of the American Medical Informatics Association : JAMIA, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 1 pooled it
–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

36 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Assessing genetic counseling efficiency with natural language processing.Journal of the American Medical Informatics Association : JAMIA · 2026
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  11. Transformers and large language models in healthcare: A review.Artificial intelligence in medicine · 2024
    Review
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  15. Machine learning approaches for electronic health records phenotyping: a methodical review.Journal of the American Medical Informatics Association : JAMIA · 2023
    Article
  16. Article
  17. Article
  18. A scoping review of publicly available language tasks in clinical natural language processing.Journal of the American Medical Informatics Association : JAMIA · 2022
    Article
  19. Combining human and machine intelligence for clinical trial eligibility querying.Journal of the American Medical Informatics Association : JAMIA · 2022
    Article
  20. HealthPrompt: A Zero-shot Learning Paradigm for Clinical Natural Language Processing.AMIA ... Annual Symposium proceedings. AMIA Symposium · 2022
    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

5 authors.

Amber StubbsDepartment of Mathematics and Computer Science, Simmons University, Boston, Massachusetts, USA.
Michele FilanninoInformation Sciences and Technology, George Mason University, Fairfax, Virginia, USA.
Ergin SoysalSchool of Biomedical Informatics, University of Texas Health Science Center, Houston, Texas, USA.
Samuel HenryInformation Sciences and Technology, George Mason University, Fairfax, Virginia, USA.
Özlem UzunerInformation Sciences and Technology, George Mason University, Fairfax, Virginia, USA.

Funding

National NLP Clinical Challenges (n2c2): Challenges in Natural Language Processing for Clinical NarrativesR13LM013127 · NLM · GEORGE MASON UNIVERSITY · PI UZUNER, OZLEM · 2019 to 2023
$100k
Challenges in Natural Language Processing in Clinical TextR13LM011411 · NLM · STATE UNIVERSITY OF NEW YORK AT ALBANY · PI UZUNER, OZLEM · 2012 to 2016
$98k
NLM NIH HHS R13 LM011411NLM NIH HHS R13 LM013127
6 · The paper itself

Abstract

objectiveTrack 1 of the 2018 National NLP Clinical Challenges shared tasks focused on identifying which patients in a corpus of longitudinal medical records meet and do not meet identified selection criteria. MATERIALS AND

methodsTo address this challenge, we annotated American English clinical narratives for 288 patients according to whether they met these criteria. We chose criteria from existing clinical trials that represented a variety of natural language processing tasks, including concept extraction, temporal reasoning, and inference.

resultsA total of 47 teams participated in this shared task, with 224 participants in total. The participants represented 18 countries, and the teams submitted 109 total system outputs. The best-performing system achieved a micro F1 score of 0.91 using a rule-based approach. The top 10 teams used rule-based and hybrid systems to approach the problems. DISCUSSION: Clinical narratives are open to interpretation, particularly in cases where the selection criterion may be underspecified. This leaves room for annotators to use domain knowledge and intuition in selecting patients, which may lead to error in system outputs. However, teams who consulted medical professionals while building their systems were more likely to have high recall for patients, which is preferable for patient selection systems.

conclusionsThere is not yet a 1-size-fits-all solution for natural language processing systems approaching this task. Future research in this area can look to examining criteria requiring even more complex inferences, temporal reasoning, and domain knowledge.

Indexed as

Machine LearningNatural Language ProcessingPatient SelectionClinical Trials as TopicData MiningDatasets as TopicHumansclinical narrativescohort selectioninformation extractionmachine learningnatural language processing

Identifiers

PMID31562516
PMCPMC6798568

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.