ArticleFrontiers in psychiatry2020
Reliability, Validity, and Factor Structure of Pittsburgh Sleep Quality Index in Community-Based Centenarians.
Article in Frontiers in psychiatry, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 91 papers, 2 of them syntheses that pooled it.
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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.
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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.
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Who cites it
91 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Symptom management in adult brain tumours: A literature review.Nursing open · 2023Pooled it
- Crocus Sativus for Insomnia: A Systematic Review and Meta-Analysis.International journal of environmental research and public health · 2022Pooled it
- The effectiveness of a cognitive behavioural therapy for insomnia based intervention to improve sleep quality in nursing home residents, a cluster randomised controlled trial.European geriatric medicine · 2026Trial
- Transcutaneous Auricular Vagus Nerve Stimulation and Pectoral-Intercostal Fascial Block for the Prevention of Chronic Postsurgical Pain in Elderly Patients Undergoing Off-Pump Coronary Artery Bypass Grafting: A 2×2 Factorial, Double-Blinded, Randomized Clinical Trial.Clinical interventions in aging · 2026Trial
- Transcutaneous auricular vagal nerve stimulation improves functional dyspepsia with sleep disturbance via enhanced vagal activity: a randomized controlled trial.International journal of surgery (London, England) · 2026Trial
- The effect of emotional freedom techniques on anxiety depression and sleep in older people living with HIV: a randomized controlled trial.AIDS research and therapy · 2024Trial
- Efficacy of spironolactone as adjunctive therapy to sodium valproate in bipolar-I disorder: A double-blind, randomized, placebo-controlled clinical trial.Brain and behavior · 2023Trial
- High-Intensity interval training reduces transcriptomic age: A randomized controlled trial.Aging cell · 2023Trial
- Quality of life, stigma, and mental health, in individuals affected by leprosy: a cross-sectional study.Transactions of the Royal Society of Tropical Medicine and Hygiene · 2026Article
- (Cost-)effectiveness of a combined lifestyle intervention integrated into standard care for low back pain compared to usual care for people with persistent non-specific low back pain who are overweight or obese: Protocol for a randomised controlled trial with parallel economic and process evaluations (Back2Health).Contemporary clinical trials communications · 2026Article
- Psychometric Evaluation of the Pittsburgh Sleep Quality Index in Family Caregivers.Journal of nursing measurement · 2026Article
- Poor sleep quality is associated with increased mortality in community-dwelling older adults: a retrospective single-center study.Irish journal of medical science · 2026Article
- Effects of Neuromuscular Electrical Stimulation of Gluteus Medius Muscle on Hip Function and Sleep Quality in Patients With Sleep Disorders After Hip Arthroplasty.Actas espanolas de psiquiatria · 2026Article
- The relationship between smartphone usage and sleep quality among university students: a cross-sectional study.Scientific reports · 2026Article
- Cyberchondria, Health Anxiety, and Sleep Quality: An Observational Cross-Sectional Study of Adults with and Without Psychosomatic Disorders.Healthcare (Basel, Switzerland) · 2026Article
- Sleep quality and its relationship with physical activity and frailty syndrome among hospitalized older adults in North Iran.African health sciences · 2026Article
- Mental Health, Sleep, and Physical Activity Among Young Saudi Women During Ramadan: A Comparative Cohort Study.Nature and science of sleep · 2026Article
- Network analysis of sleep disorders, anxiety, and loneliness among the community-dwelling older adults.Frontiers in public health · 2026Article
- Effect of Mindfulness Training on the Clinical Pregnancy Rate in Women Undergoing Frozen Embryo Transfer: Study Protocol for a Single-Center, Open-Label, Randomized Controlled Trial.International journal of women's health · 2026Article
- Association between multiple health behaviors and mental health in Chinese college students: a cross-sectional study.Frontiers in public health · 2026Article
31 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe Pittsburgh Sleep Quality Index (PSQI) is a widely used self-report questionnaire that measures general sleep quality in general populations. However, its psychometric properties have yet to be thoroughly examined in longevous persons.
objectivesThis study aimed to explore the reliability, validity and factor structure of the Chinese-language version of the PSQI in community-dwelling centenarians.
methodsA total of 958 centenarians (mean age = 102.8 years; 81.8% females) recruited from 18 regions in Hainan, China, completed the PSQI scale. Cronbach's alpha coefficient was used to measure the internal consistency. Exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) were performed to explore the validity and factor structure of the PSQI in this sample. Correlations between the global PSQI score and physical function, depression symptoms, self-reported health status and subjective well-being were used to assess divergent validity.
resultsThe Cronbach's α coefficient of the PSQI was 0.68, and it increased to 0.78 after two components (medication use and daytime dysfunction) were removed. The Spearman correlation coefficients of the PSQI score with each component were statistically significant (
conclusionsThe original PSQI showed acceptable applicability in Chinese community-dwelling centenarians, and its psychometric characteristics moderately improved after sleeping medication and daytime dysfunction were removed. Further validation studies on PSQI are needed among centenarians from varied backgrounds.
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