Evidence map›Paper›PMID 23567779›Full record

Trial reportInflammatory bowel diseases2013

Improving case definition of Crohn's disease and ulcerative colitis in electronic medical records using natural language processing: a novel informatics approach.

Ashwin N Ananthakrishnan, Tianxi Cai, Guergana Savova, Su-Chun Cheng, Pei Chen, Raul Guzman Perez, Vivian S Gainer, Shawn N Murphy, Peter Szolovits, Zongqi Xia and 6 more

Abstract readMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in Inflammatory bowel diseases, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 115 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
115citing papers in PubMed, 5 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

115 citing papers in PubMed, 5 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Pooled it
  6. Trial
  7. Natural Language Processing Algorithm Accurately Classifies Diverticulitis-Related Complications and Predicts Long-Term Outcomes.Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association · 2026
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Review
  18. Article
  19. Review
  20. Review

55 more citing papers are in PubMed but not listed here.

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

16 authors.

Ashwin N AnanthakrishnanGastrointestinal Unit, Massachusetts General Hospital, Boston, Massachusetts 02114, USA. aananthakrishnan@partners.org
Tianxi Cai
Guergana Savova
Su-Chun Cheng
Pei Chen
Raul Guzman Perez
Vivian S Gainer
Shawn N Murphy
Peter Szolovits
Zongqi Xia
Stanley Shaw
Susanne Churchill
Elizabeth W Karlson
Isaac Kohane
Robert M Plenge
Katherine P Liao

Funding

Informatics for Integrating Biology/ the Bedside (RMI)U54LM008748 · NLM · BRIGHAM AND WOMEN'S HOSPITAL · PI KOHANE, ISAAC S. · 2004 to 2013
$39.0M
Pilot & Feasibility ProgramP30DK043351 · NIDDK · MASSACHUSETTS GENERAL HOSPITAL · PI Curtis Huttenhower · 1991 to 2026
$35.3M
Genetic predictors of response to anti-TNF therapy in rheumatoid arthritisU01GM092691 · NIGMS · BRIGHAM AND WOMEN'S HOSPITAL · PI BRENNER, MICHAEL B., RAYCHAUDHURI, SOUMYA · 2010 to 2014
$7.5M
Dissection of two rheumatoid arthritis risk loci from genome-wide studiesR01AR056768 · NIAMS · BRIGHAM AND WOMEN'S HOSPITAL · PI BRENNER, MICHAEL B. · 2009 to 2013
$1.9M
Genetic Predictors of Early Atherosclerosis in SLEK24AR052403 · NIAMS · BRIGHAM AND WOMEN'S HOSPITAL · PI KARLSON, ELIZABETH W · 2005 to 2014
$1.5M
Leveraging genetics and environment to predict presymptomatic multiple sclerosisK08NS079493 · NINDS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI XIA, ZONGQI · 2012 to 2016
$957k
Genetic predictors of anti-TNF treatment response and infections in IBDK23DK097142 · NIDDK · MASSACHUSETTS GENERAL HOSPITAL · PI ANANTHAKRISHNAN, ASHWIN N · 2012 to 2016
$846k
Genetic Risk Factors for Coronary Artery Disease in Rheumatoid ArthritisK08AR060257 · NIAMS · BRIGHAM AND WOMEN'S HOSPITAL · PI LIAO, KATHERINE PHOENIX · 2011 to 2015
$649k
Meta-analysis of GWAS data to identify novel rheumatoid arthritis risk lociR01AR057108 · NIAMS · BRIGHAM AND WOMEN'S HOSPITAL · PI PLENGE, ROBERT M · 2009 to 2010
$557k
Deep Re-Sequencing of Rheumatoid Arthritis Risk LociR01AR059648 · NIAMS · BROAD INSTITUTE, INC. · PI PLENGE, ROBERT M · 2010 to 2011
$493k
NIAMS NIH HHS K08 AR060257NIAMS NIH HHS K24 AR052403NIAMS NIH HHS R01 AR056768NIAMS NIH HHS R01-AR056768NIAMS NIH HHS R01 AR057108NIAMS NIH HHS R01 AR059648NIAMS NIH HHS R01-AR059648NIDDK NIH HHS K23 DK097142NIDDK NIH HHS P30 DK043351NIGMS NIH HHS U01 GM092691NIGMS NIH HHS U01-GM092691NINDS NIH HHS K08 NS079493NLM NIH HHS U54 LM008748NLM NIH HHS U54-LM008748
6 · The paper itself

Abstract

backgroundPrevious studies identifying patients with inflammatory bowel disease using administrative codes have yielded inconsistent results. Our objective was to develop a robust electronic medical record-based model for classification of inflammatory bowel disease leveraging the combination of codified data and information from clinical text notes using natural language processing.

methodsUsing the electronic medical records of 2 large academic centers, we created data marts for Crohn's disease (CD) and ulcerative colitis (UC) comprising patients with ≥1 International Classification of Diseases, 9th edition, code for each disease. We used codified (i.e., International Classification of Diseases, 9th edition codes, electronic prescriptions) and narrative data from clinical notes to develop our classification model. Model development and validation was performed in a training set of 600 randomly selected patients for each disease with medical record review as the gold standard. Logistic regression with the adaptive LASSO penalty was used to select informative variables.

resultsWe confirmed 399 CD cases (67%) in the CD training set and 378 UC cases (63%) in the UC training set. For both, a combined model including narrative and codified data had better accuracy (area under the curve for CD 0.95; UC 0.94) than models using only disease International Classification of Diseases, 9th edition codes (area under the curve 0.89 for CD; 0.86 for UC). Addition of natural language processing narrative terms to our final model resulted in classification of 6% to 12% more subjects with the same accuracy.

conclusionsInclusion of narrative concepts identified using natural language processing improves the accuracy of electronic medical records case definition for CD and UC while simultaneously identifying more subjects compared with models using codified data alone.

Indexed as

Electronic Health RecordsMedical InformaticsNatural Language ProcessingAdultAlgorithmsColitis, UlcerativeCrohn DiseaseFemaleFollow-Up StudiesHumansMalePrognosisTertiary Care Centers

Identifiers

PMID23567779
PMCPMC3665760

What OpenQuestion holds

Textmetadata
LicenceTDM
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.