Evidence map›Paper›PMID 29743531›Full record

ArticleScientific reports2018

Identifying Suicide Ideation and Suicidal Attempts in a Psychiatric Clinical Research Database using Natural Language Processing.

Andrea C Fernandes, Rina Dutta, Sumithra Velupillai, Jyoti Sanyal, Robert Stewart, David Chandran

Abstract read
In one paragraph

Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 82 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
82citing papers in PubMed, 6 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

82 citing papers in PubMed, 6 syntheses or guidelines pooled it.

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  6. Artificial Intelligence and Suicide Prevention: A Systematic Review of Machine Learning Investigations.International journal of environmental research and public health · 2020
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22 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

6 authors.

Andrea C FernandesInstitute of Psychiatry, Psychology and Neuroscience, Academic Department of Psychological Medicine, London, SE5 8AF, United Kingdom. andrea.fernandes@kcl.ac.uk.
Rina DuttaInstitute of Psychiatry, Psychology and Neuroscience, Academic Department of Psychological Medicine, London, SE5 8AF, United Kingdom.
Sumithra VelupillaiInstitute of Psychiatry, Psychology and Neuroscience, Academic Department of Psychological Medicine, London, SE5 8AF, United Kingdom.
Jyoti SanyalInstitute of Psychiatry, Psychology and Neuroscience, Academic Department of Psychological Medicine, London, SE5 8AF, United Kingdom.
Robert StewartInstitute of Psychiatry, Psychology and Neuroscience, Academic Department of Psychological Medicine, London, SE5 8AF, United Kingdom.
David ChandranInstitute of Psychiatry, Psychology and Neuroscience, Academic Department of Psychological Medicine, London, SE5 8AF, United Kingdom.

Funding

Medical Research Council MC_PC_17214
6 · The paper itself

Abstract

Research into suicide prevention has been hampered by methodological limitations such as low sample size and recall bias. Recently, Natural Language Processing (NLP) strategies have been used with Electronic Health Records to increase information extraction from free text notes as well as structured fields concerning suicidality and this allows access to much larger cohorts than previously possible. This paper presents two novel NLP approaches - a rule-based approach to classify the presence of suicide ideation and a hybrid machine learning and rule-based approach to identify suicide attempts in a psychiatric clinical database. Good performance of the two classifiers in the evaluation study suggest they can be used to accurately detect mentions of suicide ideation and attempt within free-text documents in this psychiatric database. The novelty of the two approaches lies in the malleability of each classifier if a need to refine performance, or meet alternate classification requirements arises. The algorithms can also be adapted to fit infrastructures of other clinical datasets given sufficient clinical recording practice knowledge, without dependency on medical codes or additional data extraction of known risk factors to predict suicidal behaviour.

Indexed as

Databases, FactualNatural Language ProcessingSuicidal IdeationData MiningHumansSuicide, Attempted

Identifiers

PMID29743531
PMCPMC5943451

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.