Evidence map›Paper›PMID 40390183›Full record

ArticleSleep2025

The prevalence, incidence, and impact of narcolepsy and idiopathic hypersomnia in Taiwan: comparison between the National Health Insurance Research Claims Database and a hospital cohort database.

Yu-Shu Huang, Wei-Chih Chin, I-Hang Chung, Tsun-Yi Roan, Chee-Jen Chang, Hsiao-Ting Juang, Shu-Chen Chang, Somraj Ghosh, Stephen Crawford, Huang-Li Lin

Abstract readComparative Study
In one paragraph

Article in Sleep, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–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

3 citing papers in PubMed.

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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

10 authors.

Yu-Shu HuangDivision of Psychiatry and Sleep Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan.
Wei-Chih ChinDivision of Psychiatry and Sleep Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan.
I-Hang ChungDivision of Psychiatry and Sleep Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan.
Tsun-Yi RoanDivision of Psychiatry and Sleep Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan.
Chee-Jen ChangDepartment of Artificial Intelligence, Chang Gung University, Taoyuan, Taiwan.
Hsiao-Ting JuangDepartment of Artificial Intelligence, Chang Gung University, Taoyuan, Taiwan.
Shu-Chen ChangResearch Services Center for Health Information, Chang Gung University, Taoyuan, Taiwan.
Somraj GhoshGlobal Evidence and Outcomes - Neuroscience, Takeda Development Center Americas, Inc., Cambridge, MA, USA.
Stephen CrawfordGlobal Evidence and Outcomes - Neuroscience, Takeda Development Center Americas, Inc., Cambridge, MA, USA.
Huang-Li LinDivision of Psychiatry and Sleep Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan.

Funding

Taiwan National Science and Technology Counsel 109-2314-B-182A-112-MY3 and NSTC 112-2314-B-182A-032-MY3
6 · The paper itself

Abstract

STUDY

objectivesWe investigated the prevalence and incidence of narcolepsy (types 1 and 2) and idiopathic hypersomnia (IH) in Taiwan using the National Health Insurance Research Database (NHIRD), and compared disease impact with patients identified from a "gold-standard" hospital database.

methodsThis study employed retrospective cohort and cross-sectional designs to analyze data from the NHIRD and the hospital database cohort between 2009 and 2019. Analyses comprised prevalence and incidence of narcolepsy and IH, with diagnoses validated against the hospital database, and comparison of demographics, prescriptions, comorbidities, healthcare utilization, and costs with a control cohort. Categorical variables were analyzed using the chi-squared test; continuous variables were assessed via analysis of variance or Kruskal-Wallis tests.

resultsFrom both databases, 24 317 patients were identified as having narcolepsy or IH. The diagnosed prevalence of narcolepsy was 9.98 per 100 000 individuals. Annual increases in prevalence and incidence were observed, particularly in young adults (aged 21-30 years). Patients with narcolepsy and IH exhibited higher rates of comorbidities and received more psychotropics compared with controls. However, fewer patients from the NHIRD received treatment for hypersomnolence than those from the hospital cohort. Healthcare utilization and costs were higher among patients with narcolepsy and IH compared with controls.

conclusionsIncreased narcolepsy prevalence over time was observed, particularly among young adults, but the overall prevalence in Taiwan appears to be lower than in other countries, potentially indicating underdiagnosis or inadequate treatment. High comorbidity rates and healthcare utilization underscore the substantial disease impact in patients with central hypersomnia.

Indexed as

Idiopathic HypersomniaNarcolepsyAdolescentAdultAgedChildCohort StudiesComorbidityCross-Sectional StudiesDatabases, FactualFemaleHumansIncidenceMaleMiddle AgedNational Health Programsdisease impactepidemiologyidiopathic hypersomnianarcolepsy type 1narcolepsy type 2National Health Insurance Research Database

Identifiers

PMID40390183
PMCPMC12597673

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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.