Evidence map›Paper›PMID 20976281›Full record

ArticlePloS one2010

Combining free text and structured electronic medical record entries to detect acute respiratory infections.

Sylvain DeLisle, Brett South, Jill A Anthony, Ericka Kalp, Adi Gundlapallli, Frank C Curriero, Greg E Glass, Matthew Samore, Trish M Perl

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 2 pooled it
3.2field-weighted citation impact, top 8% 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, 2 syntheses or guidelines pooled it, 48 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Article
  6. Article
  7. Smart Medical Information Technology for Healthcare (SMITH).Methods of information in medicine · 2018
    Article
  8. Article
  9. Article
  10. Observational
  11. Article
  12. Article
  13. Using Anchors to Estimate Clinical State without Labeled Data.AMIA ... Annual Symposium proceedings. AMIA Symposium · 2014
    Article
  14. Article
  15. Article
  16. Article
  17. Identification of insomnia in a sleep center population using electronic health data sources and the insomnia severity index.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2013
    Article
  18. Article
  19. 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

9 authors at 4 institutions in 1 country.

Sylvain DeLisleVeterans Affairs Maryland Health Care System, Baltimore, Maryland, United States of America. sdelisle@umaryland.edu
Brett South
Jill A Anthony
Ericka Kalp
Adi Gundlapallli
Frank C Curriero
Greg E Glass
Matthew Samore
Trish M Perl
Johns Hopkins University · USUniversity of Utah · USVA Maryland Health Care System · USVA Salt Lake City Healthcare System · US

Funding

Developing a Bioterrorism Syndromic Surveillance SystemR01CI000098 · CI · JOHNS HOPKINS UNIVERSITY · PI PERL, TRISH M · 2003 to 2005
–
NCPDCID CDC HHS R01 CI000098PHITPO CDC HHS 1 P01HK000069-01PHITPO CDC HHS P01 HK000069PHITPO CDC HHS RFA HK000013PHITPO CDC HHS U38 HK000013
6 · The paper itself

Abstract

backgroundThe electronic medical record (EMR) contains a rich source of information that could be harnessed for epidemic surveillance. We asked if structured EMR data could be coupled with computerized processing of free-text clinical entries to enhance detection of acute respiratory infections (ARI). METHODOLOGY: A manual review of EMR records related to 15,377 outpatient visits uncovered 280 reference cases of ARI. We used logistic regression with backward elimination to determine which among candidate structured EMR parameters (diagnostic codes, vital signs and orders for tests, imaging and medications) contributed to the detection of those reference cases. We also developed a computerized free-text search to identify clinical notes documenting at least two non-negated ARI symptoms. We then used heuristics to build case-detection algorithms that best combined the retained structured EMR parameters with the results of the text analysis. PRINCIPAL

findingsAn adjusted grouping of diagnostic codes identified reference ARI patients with a sensitivity of 79%, a specificity of 96% and a positive predictive value (PPV) of 32%. Of the 21 additional structured clinical parameters considered, two contributed significantly to ARI detection: new prescriptions for cough remedies and elevations in body temperature to at least 38°C. Together with the diagnostic codes, these parameters increased detection sensitivity to 87%, but specificity and PPV declined to 95% and 25%, respectively. Adding text analysis increased sensitivity to 99%, but PPV dropped further to 14%. Algorithms that required satisfying both a query of structured EMR parameters as well as text analysis disclosed PPVs of 52-68% and retained sensitivities of 69-73%.

conclusionStructured EMR parameters and free-text analyses can be combined into algorithms that can detect ARI cases with new levels of sensitivity or precision. These results highlight potential paths by which repurposed EMR information could facilitate the discovery of epidemics before they cause mass casualties.

Indexed as

Medical Records Systems, ComputerizedAcute DiseaseAdultAgedAged, 80 and overAlgorithmsClinical CodingHumansMiddle AgedOutpatientsRespiratory Tract Infections

Identifiers

PMID20976281
PMCPMC2954790
OpenAlexW1994373518

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.