Evidence map›Paper›PMID 21682950›Full record

ArticlePsychological medicine2012

Using electronic medical records to enable large-scale studies in psychiatry: treatment resistant depression as a model.

R H Perlis, D V Iosifescu, V M Castro, S N Murphy, V S Gainer, J Minnier, T Cai, S Goryachev, Q Zeng, P J Gallagher and 5 more

Abstract read
In one paragraph

Article in Psychological medicine, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 111 papers, 7 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
111citing papers in PubMed, 7 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

111 citing papers in PubMed, 7 syntheses or guidelines pooled it.

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  5. Text mining applications in psychiatry: a systematic literature review.International journal of methods in psychiatric research · 2016
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51 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

15 authors.

R H PerlisDepression Clinic and Research Program, Department of Psychiatry, Massachusetts General Hospital, Boston, MA, USA. rperlis@partners.org
D V Iosifescu
V M Castro
S N Murphy
V S Gainer
J Minnier
T Cai
S Goryachev
Q Zeng
P J Gallagher
M Fava
J B Weilburg
S E Churchill
I S Kohane
J W Smoller

Funding

Informatics for Integrating Biology/ the Bedside (RMI)U54LM008748 · NLM · BRIGHAM AND WOMEN'S HOSPITAL · PI KOHANE, ISAAC S. · 2004 to 2013
$39.0M
International Cohort Collection for Bipolar DisorderR01MH085542 · NIMH · MASSACHUSETTS GENERAL HOSPITAL · PI SMOLLER, JORDAN W · 2008 to 2012
$10.7M
Building a Risk Stratification Model for Treatment Resistance in Major DepressiveR01MH086026 · NIMH · MASSACHUSETTS GENERAL HOSPITAL · PI PERLIS, ROY H. · 2009 to 2011
$1.3M
NIMH NIH HHS R01 MH085542NIMH NIH HHS R01MH085542NIMH NIH HHS R01 MH086026NIMH NIH HHS R01MH086026NLM NIH HHS U54 LM008748NLM NIH HHS U54LM008748
6 · The paper itself

Abstract

backgroundElectronic medical records (EMR) provide a unique opportunity for efficient, large-scale clinical investigation in psychiatry. However, such studies will require development of tools to define treatment outcome.

methodNatural language processing (NLP) was applied to classify notes from 127 504 patients with a billing diagnosis of major depressive disorder, drawn from out-patient psychiatry practices affiliated with multiple, large New England hospitals. Classifications were compared with results using billing data (ICD-9 codes) alone and to a clinical gold standard based on chart review by a panel of senior clinicians. These cross-sectional classifications were then used to define longitudinal treatment outcomes, which were compared with a clinician-rated gold standard.

resultsModels incorporating NLP were superior to those relying on billing data alone for classifying current mood state (area under receiver operating characteristic curve of 0.85-0.88 v. 0.54-0.55). When these cross-sectional visits were integrated to define longitudinal outcomes and incorporate treatment data, 15% of the cohort remitted with a single antidepressant treatment, while 13% were identified as failing to remit despite at least two antidepressant trials. Non-remitting patients were more likely to be non-Caucasian (p<0.001).

conclusionsThe application of bioinformatics tools such as NLP should enable accurate and efficient determination of longitudinal outcomes, enabling existing EMR data to be applied to clinical research, including biomarker investigations. Continued development will be required to better address moderators of outcome such as adherence and co-morbidity.

Indexed as

Electronic Health RecordsPsychiatryAdultAlgorithmsAmbulatory CareBiomedical ResearchCross-Sectional StudiesDepressive Disorder, Treatment-ResistantFemaleHumansInternational Classification of DiseasesLogistic ModelsLongitudinal StudiesMaleMiddle AgedModels, Theoretical

Identifiers

PMID21682950
PMCPMC3837420

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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.