Evidence map›Paper›PMID 34255719›Full record

ArticleJMIR public health and surveillance2021

Incorporating Unstructured Patient Narratives and Health Insurance Claims Data in Pharmacovigilance: Natural Language Processing Analysis of Patient-Generated Texts About Systemic Lupus Erythematosus.

Shinichi Matsuda, Takumi Ohtomo, Shiho Tomizawa, Yuki Miyano, Miwako Mogi, Hiroshi Kuriki, Terumi Nakayama, Shinichi Watanabe

Abstract read
In one paragraph

Article in JMIR public health and surveillance, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 2 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

4 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
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  4. 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

8 authors.

Shinichi MatsudaReal-World Data Science Department, Chugai Pharmaceutical Co Ltd, Tokyo, Japan.ORCID 0000-0003-1822-1090
Takumi OhtomoReal-World Data Science Department, Chugai Pharmaceutical Co Ltd, Tokyo, Japan.ORCID 0000-0002-6438-6315
Shiho TomizawaRisk Communication Department, Chugai Pharmaceutical Co Ltd, Tokyo, Japan.ORCID 0000-0002-5354-0583
Yuki MiyanoReal-World Data Science Department, Chugai Pharmaceutical Co Ltd, Tokyo, Japan.ORCID 0000-0002-9964-6690
Miwako MogiFoundation Medicine Business Department, Chugai Pharmaceutical Co Ltd, Tokyo, Japan.ORCID 0000-0002-3137-8087
Hiroshi KurikiBiometrics Department, Chugai Pharmaceutical Co Ltd, Tokyo, Japan.ORCID 0000-0002-3954-9039
Terumi NakayamaReal-World Data Science Department, Chugai Pharmaceutical Co Ltd, Tokyo, Japan.ORCID 0000-0001-8677-1567
Shinichi WatanabeReal-World Data Science Department, Chugai Pharmaceutical Co Ltd, Tokyo, Japan.ORCID 0000-0003-0420-5786

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundGaining insights that cannot be obtained from health care databases from patients has become an important topic in pharmacovigilance.

objectiveOur objective was to demonstrate a use case, in which patient-generated data were incorporated in pharmacovigilance, to understand the epidemiology and burden of illness in Japanese patients with systemic lupus erythematosus.

methodsWe used data on systemic lupus erythematosus, an autoimmune disease that substantially impairs quality of life, from 2 independent data sets. To understand the disease's epidemiology, we analyzed a Japanese health insurance claims database. To understand the disease's burden, we analyzed text data collected from Japanese disease blogs (tōbyōki) written by patients with systemic lupus erythematosus. Natural language processing was applied to these texts to identify frequent patient-level complaints, and term frequency-inverse document frequency was used to explore patient burden during treatment. We explored health-related quality of life based on patient descriptions.

resultsWe analyzed data from 4694 and 635 patients with systemic lupus erythematosus in the health insurance claims database and tōbyōki blogs, respectively. Based on health insurance claims data, the prevalence of systemic lupus erythematosus is 107.70 per 100,000 persons. Tōbyōki text data analysis showed that pain-related words (eg, pain, severe pain, arthralgia) became more important after starting treatment. We also found an increase in patients' references to mobility and self-care over time, which indicated increased attention to physical disability due to disease progression.

conclusionsA classical medical database represents only a part of a patient's entire treatment experience, and analysis using solely such a database cannot represent patient-level symptoms or patient concerns about treatments. This study showed that analysis of tōbyōki blogs can provide added information on patient-level details, advancing patient-centric pharmacovigilance.

Indexed as

Lupus Erythematosus, SystemicPharmacovigilanceBloggingHumansInsurance, HealthNatural Language ProcessingQuality of Lifeadverse drug reactionburdenchronic diseasedataepidemiologyinsuranceJapanlupusnarrativenatural language processingNLPpatient-generatedpharmacovigilancesocial mediasystemic lupus erythematosustext mining

Identifiers

PMID34255719
PMCPMC8278300

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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.