Evidence map›Paper›PMID 33766838›Full record

ArticleBMJ open2021

Text mining occupations from the mental health electronic health record: a natural language processing approach using records from the Clinical Record Interactive Search (CRIS) platform in south London, UK.

Natasha Chilman, Xingyi Song, Angus Roberts, Esther Tolani, Robert Stewart, Zoe Chui, Karen Birnie, Lisa Harber-Aschan, Billy Gazard, David Chandran and 4 more

Open access · goldAbstract read
In one paragraph

Article in BMJ open, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 2 pooled it
3.5field-weighted citation impact, top 7% 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

12 citing papers in PubMed, 2 syntheses or guidelines pooled it, 30 citations in OpenAlex.

  1. Pooled it
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  12. Automating Access to Real-World Evidence.JTO clinical and research reports · 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

14 authors at 3 institutions in 1 country.

Natasha ChilmanInstitute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK natasha.chilman@kcl.ac.uk.ORCID http://orcid.org/0000-0002-9661-5098
Xingyi SongDepartment of Computer Science, University of Sheffield, Sheffield, UK.ORCID http://orcid.org/0000-0002-4188-6974
Angus RobertsInstitute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.ORCID http://orcid.org/0000-0002-4570-9801
Esther TolaniInstitute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.ORCID http://orcid.org/0000-0002-7415-0859
Robert StewartInstitute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.ORCID http://orcid.org/0000-0002-4435-6397
Zoe ChuiInstitute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.ORCID http://orcid.org/0000-0001-6844-6779
Karen BirnieInstitute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.ORCID http://orcid.org/0000-0003-4123-1676
Lisa Harber-AschanInstitute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.ORCID http://orcid.org/0000-0002-6464-4855
Billy GazardInstitute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.ORCID http://orcid.org/0000-0002-7562-5393
David ChandranSouth London and Maudsley NHS Foundation Trust, London, UK.ORCID http://orcid.org/0000-0002-0123-666X
Jyoti SanyalSouth London and Maudsley NHS Foundation Trust, London, UK.
Stephani HatchInstitute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.ORCID http://orcid.org/0000-0001-9103-2427
Anna KolliakouInstitute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.ORCID http://orcid.org/0000-0003-1234-4129
Jayati Das-MunshiInstitute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.ORCID http://orcid.org/0000-0002-3913-6859
King's College London · GBSouth London and Maudsley NHS Foundation Trust · GBUniversity of Sheffield · GB

Funding

Medical Research Council MR/T045302/1Medical Research Council MR/V049879/1Wellcome Trust 203380/Z/16/ZWellcome Trust 203380Z16Z
6 · The paper itself

Abstract

objectivesWe set out to develop, evaluate and implement a novel application using natural language processing to text mine occupations from the free-text of psychiatric clinical notes.

designDevelopment and validation of a natural language processing application using General Architecture for Text Engineering software to extract occupations from de-identified clinical records. SETTING AND

participantsElectronic health records from a large secondary mental healthcare provider in south London, accessed through the Clinical Record Interactive Search platform. The text mining application was run over the free-text fields in the electronic health records of 341 720 patients (all aged ≥16 years). OUTCOMES: Precision and recall estimates of the application performance; occupation retrieval using the application compared with structured fields; most common patient occupations; and analysis of key sociodemographic and clinical indicators for occupation recording.

resultsUsing the structured fields alone, only 14% of patients had occupation recorded. By implementing the text mining application in addition to the structured fields, occupations were identified in 57% of patients. The application performed on gold-standard human-annotated clinical text at a precision level of 0.79 and recall level of 0.77. The most common patient occupations recorded were 'student' and 'unemployed'. Patients with more service contact were more likely to have an occupation recorded, as were patients of a male gender, older age and those living in areas of lower deprivation.

conclusionThis is the first time a natural language processing application has been used to successfully derive patient-level occupations from the free-text of electronic mental health records, performing with good levels of precision and recall, and applied at scale. This may be used to inform clinical studies relating to the broader social determinants of health using electronic health records.

Indexed as

Electronic Health RecordsNatural Language ProcessingAdolescentAdultData MiningHumansLondonMaleMental HealthOccupationsUnited Kingdomadult psychiatryepidemiologyhealth informaticsmental health

Identifiers

PMID33766838
PMCPMC7996661
OpenAlexW3134221941

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.