ArticleJournal of patient-reported outcomes2020
Preliminary validation of the insomnia severity index in Danish outpatients with a medical condition.
Article in Journal of patient-reported outcomes, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.
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Who cites it
20 citing papers in PubMed, 1 synthesis or guideline pooled it, 29 citations in OpenAlex.
- Measuring Subjective Sleep Quality: A Review.International journal of environmental research and public health · 2021Pooled it
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- S-FAME: a low-threshold municipal social services intervention for digital media-related family difficulties in children aged 10-14 years: protocol for a randomized controlled trial.BMC psychology · 2026Article
- A gradual and sustainable approach to diagnosing sleep and circadian disturbances in dementia.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026Review
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- Prevalence and influencing factors of insomnia among adults in centralized quarantine: A cross-sectional study.Medicine · 2026Observational
- Mental health status of workers in the semiconductor industry during the COVID-19 pandemic: comparisons between regions on three continents.Frontiers in public health · 2026Article
- Psychometric validation of selected scales assessing mental health conditions among Ghanaian youth.Global mental health (Cambridge, England) · 2026Article
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- Sleep problems and insomnia are common and associated with pain intensity, number of comorbidities and analgesic use in patients with knee and hip osteoarthritis: a cross-sectional study using data from the good life with osteoarthritis in Denmark (GLA:DRheumatology international · 2025Article
- Family-Centered Treatment Program for Problematic Gaming and Excessive Screen Use in a Clinical Child and Youth Population (FAME): Protocol for a Feasibility Pilot Mixed Method Study.JMIR research protocols · 2024Article
- Peer-supported mobile mental health for veterans in primary care: A pilot study.Psychological services · 2023Article
- The Danish Pain Research Biobank (DANPAIN-Biobank): a collection of blood, cerebrospinal fluid, and clinical data for the study of neuroimmune and glia-related biomarkers of chronic pain.Annals of translational medicine · 2023Article
- A Series of Remote Melatonin Supplement Interventions for Poor Sleep: Protocol for a Feasibility Pilot Study for a Series of Personalized (N-of-1) Trials.JMIR research protocols · 2023Article
- Positive impacts of e-aid cognitive behavioural therapy on the sleep quality and mood of nurses on site during the COVID-19 pandemic.Sleep & breathing = Schlaf & Atmung · 2022Article
- Psychological Distress among Hospitalized COVID-19 Patients in Denmark during the First 12 Months of the Pandemic.International journal of environmental research and public health · 2022Observational
- Article
- Psychometric Evaluation of the Insomnia Severity Index in Nurses.Behavioral sleep medicineArticle
- Psychometric Properties of the Insomnia Severity Index Among Arabic Chronic Diseases Patients.SAGE open nursingArticle
Corrections and comments
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Authors and funding
7 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeInsomnia is a frequent sleeping disorder in the general and clinical population. With an increasing proportion of health care services being provided as outpatient care, a short, valid and reliable tool is needed to identify insomnia in medical patients under outpatient care in Denmark. The Insomnia Severity Index (ISI) could be the needed tool if found valid and reliable. Hence, the aim of this study is to evaluate elements of the psychometric properties of the Danish version of ISI (ISI-DK).
methodsOutpatients from three hospital wards and one rehabilitation center were asked to complete the ISI-DK twice, 2 weeks apart. Internal consistency, discriminative validity, test-retest reliability, and measurement error was assessed.
resultsThe ISI-DK was completed by 249 (79.0%) participants the first time, and 163 (65.5%) the second time. Respondents had a mean age of 58.2 years (SD 13.5) and 63.5% were women. All but one of the discriminative hypotheses was accepted. Internal consistency was high in the global scale at 0.90 and good with Cronbach's alpha at 0.75-0.88 in the proposed subscales. The test-retest reliability was good, as the intraclass correlation was 0.90 (95% CI: 0.87; 0.93). Ceiling and floor effects were low < 4.4%. Standard error of measurement was 2.52 and smallest detectable change 6.99.
conclusionThis preliminary assessment showed encouraging results supporting the ISI-DK as a valid and reliable tool for screening insomnia severity in Danish outpatients with a medical condition, but further assessments are needed.
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