ArticlePsychiatry research2019
Development and validation of the Hypersomnia Severity Index (HSI): A measure to assess hypersomnia severity and impairment in psychiatric disorders.
Article in Psychiatry research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 2 of them syntheses that pooled it.
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Who cites it
18 citing papers in PubMed, 2 syntheses or guidelines pooled it, 39 citations in OpenAlex.
- Efficacy of advancement treatments of the stomatognathic system on objective sleepiness in OSA: a systematic review.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2025Pooled it
- Objective measures of sleep duration and continuity in major depressive disorder with comorbid hypersomnolence: a primary investigation with contiguous systematic review and meta-analysis.Journal of sleep research · 2017Pooled it
- Treating narcolepsy-related nightmares with cognitive behavioural therapy and targeted lucidity reactivation: A pilot study.Journal of sleep research · 2025Trial
- Electroacupuncture as a Non-Pharmacological Intervention for Nicotine Dependence: Evidence from a Randomized Clinical Trial.Therapeutics and clinical risk management · 2025Trial
- Modafinil Versus Amphetamine-Dextroamphetamine For Idiopathic Hypersomnia and Narcolepsy Type 2: A Randomized, Blinded, Non-inferiority Trial.CNS drugs · 2024Trial
- Trial
- Phenotypic Variability in Slow-Wave Sleep in Depression: Associations With Clinical Profiles and Disorder Severity.Journal of sleep research · 2026Article
- Slow Wave Activity During Nocturnal Sleep in Hypersomnolence Disorder.Journal of sleep research · 2026Article
- Understanding excessive sleep in people with psychotic disorders.The British journal of clinical psychology · 2026Article
- Association between sleep inertia and cognitive performance among older adults in the Wisconsin Sleep Cohort study.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2026Article
- A Sleep and Circadian Biomarker-Based Predictive Model for Differentiating Unipolar and Bipolar Depression.Depression and anxiety · 2026Article
- Napping during major depressive episodes identifies a distinct hypersomnolence phenotype.Sleep advances : a journal of the Sleep Research Society · 2026Article
- Validation and performance of the sleep inertia questionnaire in central disorders of hypersomnolence.Sleep medicine · 2024Article
- Are unrefreshing naps associated with nocturnal sleep architecture specificities in idiopathic hypersomnia?Sleep · 2023Article
- The Bordeaux Sleepiness Scale (BOSS): a new questionnaire to measure sleep-related driving risk.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2023Article
- The Hypersomnia Severity Index: reliability, construct, and criterion validity in a clinical sample of patients with sleep disorders.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2021Article
- Effect of adenotonsillectomy in children with obstructive sleep apnea and major psychiatric disorders on obstructive apnea-hypopnea index and Epworth Sleepiness Scale scores.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2021Article
- Multimodal assessment increases objective identification of hypersomnolence in patients referred for multiple sleep latency testing.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2020Article
Corrections and comments
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Authors and funding
4 authors at 3 institutions in 1 country.
Funding
Abstract
Hypersomnia is common in psychiatric disorders, yet there are few self-report measures that adequately characterize this sleep disturbance. The objective of this study was to validate the Hypersomnia Severity Index (HSI), a tool designed to measure severity, distress and impairment of hypersomnia in psychiatric populations. Psychometric properties were evaluated in an undergraduate Scale Development sample (N = 381) and two psychiatric Scale Validation samples: euthymic bipolar participants with a range of sleep complaints (N = 89), and unmedicated unipolar depressed participants (N = 21) meeting operational criteria for hypersomnolence disorder. Exploratory factor analysis and confirmatory factor analysis in the Scale Development and Validation samples, respectively, suggested a two-factor structure representing Hypersomnia Symptoms and Distress/Impairment best fit the data. Convergent validity was established by significant associations with the Epworth Sleepiness Scale (ESS), Pittsburgh Sleep Quality Index (PSQI), and the Sheehan Disability Scale in both samples. Construct validity was further supported by significant correlations between the Scale Validation sample and two weeks of diary- and actigraphy-determined total sleep time and time in bed. A cutoff score of 10 maximally discriminated between those with hypersomnia and those without. The HSI shows promise as a measure of hypersomnia that is commonly seen in psychiatric disorders, and may be of use to both researchers and clinicians. SUPPORT: This work is supported by grants from the American Sleep Medicine Foundation (76-JF-12), the Brain and Behavior Research Foundation (19193), and NIMHK23MH099234 (DTP); National Science Foundation Graduate Research Fellowship Program and Stanford Child Health Research Institute (KAK); and R34MH080958 and R01MH105513 (AGH).
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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.