ArticleSleep & breathing = Schlaf & Atmung2024
Validation and cutoff score for the single-item sleep quality scale.
Article in Sleep & breathing = Schlaf & Atmung, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled 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.
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.
Who cites it
7 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Measurement properties of Arabic-validated sleep quality instruments: a COSMIN-based systematic review from the BRIDGE Project.Frontiers in psychology · 2026Pooled it
- Between-Day Reliability of Visuomotor Response Times Under Stroboscopic Conditions Varying in Difficulty.Perceptual and motor skills · 2026Article
- Cross-cultural adaptation and psychometric validation of the Arabic version of the Orofacial Awakening Symptoms Questionnaire (OFASQ).Journal of oral & facial pain and headache · 2026Article
- The personal habits and sleep quality affect the health-related quality of patients with hypertension: The results of a cross-sectional study.Journal of education and health promotion · 2026Article
- The relationship between sleep health characteristics and risk of multimorbidity: A cross-sectional study based on public health surveillance system in southern Tehran-Iran.Preventive medicine reports · 2025Article
- Comparing the Effects of Cranial Electrotherapy Stimulation and Cognitive Behavioral Therapy for Insomnia on Daily Mood and Physiological Sleep Parameters in Athletes with Poor Pre-Competition Sleep Quality.Life (Basel, Switzerland) · 2025Article
- Health-promoting lifestyle as a predictor of well-being in Honduran university students: a structural equation modeling approach with mental health and sleep quality as mediators.Frontiers in psychology · 2025Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThe Sleep Quality Scale (SQS) is a popular single-item measure of sleep quality that has been used in research and clinical settings. The aim of the current paper is to validate the SQS and provide a cutoff score.
methodsWe conducted two studies to validate the SQS and provide a cutoff score to simplify the interpretation of SQS scores. We collected data from 747 physicians and nurses working in Oman.
resultsIn Study 1, conducted during the first two weeks of April 2020, a significant positive relationship was observed between the SQS and The World Health Organization Wellbeing Index (r. = 0.90) and a significant negative relationship was found with the Generalized Anxiety Disorder scale (r = .88) and the Intolerance of Uncertainty Scale-12 (r = .88). In Study 2, conducted between October 12 and November 19, 2020, we proposed a cutoff score for the SQS using the Insomnia Severity Index cutoff score of ≥ 10. The estimated area under the receiver operating characteristics curve was 0.881 (95% CI = 0.84-0.92). A cutoff score of ≤ 6 was identified with a sensitivity of 87.50 (95% CI = 0.78-0.94), and a specificity of 74.10 (95% CI = 0.67-0.81).
conclusionsThe findings of this study suggest that the single-item SQS is valid and an acceptable substitute for longer scales for initial assessment of sleep quality. The suggested cutoff value should help in easily classifying individuals into poor sleepers and good sleepers.
Indexed as
Identifiers
39611989What OpenQuestion holds
Registered trials
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.