SynthesisSleep2015
Sleep Duration and Waist Circumference in Adults: A Meta-Analysis.
Synthesis in Sleep, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 63 papers, 2 of them syntheses 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
63 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Sleep duration and risk of all-cause mortality: a systematic review and meta-analysis.Epidemiology and psychiatric sciences · 2019Pooled it
- Nighttime sleep duration, 24-hour sleep duration and risk of all-cause mortality among adults: a meta-analysis of prospective cohort studies.Scientific reports · 2016Pooled it
- Nutraceutical blends predict enhanced health via microbiota reshaping improving cytokines and life quality: a Brazilian double-blind randomized trial.Scientific reports · 2024Trial
- Trial
- The Impact of Sleep Debt on Excess Adiposity and Insulin Sensitivity in Patients with Early Type 2 Diabetes Mellitus.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2016Trial
- Association Between Workday Sleep Deprivation, Weekend Catch-Up Sleep, and Abdominal Adiposity Indicators: A Cross-Sectional Study Among Brazilian Female Fixed-Shift Workers.Diseases (Basel, Switzerland) · 2026Article
- Sleep Disorders and Obesity in Saudi Populations Across the Lifespan: A Systematic Review.Journal of clinical medicine · 2025Review
- Study protocol for Project SHINE (Sleep Health INitiative for Equity): A community-based pilot RCT to promote sleep and physical activity among Black/African American adults.Contemporary clinical trials communications · 2025Article
- Longitudinal associations of body composition with sleep problems in the first two years after colorectal cancer treatment.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2025Observational
- Prevalence of cardiovascular disease risk factors in ethnic minority adults in plateau areas: a cross-sectional study in Yunnan Province.BMC public health · 2025Article
- Associations of smoking status and leisure-time physical activity with waist circumference change-10-year follow-up among twin adults.International journal of obesity (2005) · 2025Article
- The economic costs and consequences of (insufficient) sleep: a case study from Latin America.The European journal of health economics : HEPAC : health economics in prevention and care · 2025Article
- The dietary factors associated with sleep duration in postmenopausal middle-aged women: a cross-sectional study using 2019-2023 Korea National Health and Nutrition Examination Survey data.Korean journal of community nutrition · 2025Article
- Sleep Duration Alters Overfeeding-mediated Reduction in Insulin Sensitivity.The Journal of clinical endocrinology and metabolism · 2025Article
- Association between sleep duration and patterns and obesity: a cross-sectional study of the 2007-2018 national health and nutrition examination survey.BMC public health · 2025Article
- Exploring the Science of Shape: How Physical Activity, Sleep, and Stress Affect Body Composition.Healthcare (Basel, Switzerland) · 2025Review
- Sex differences in the relationship between short sleep duration and obesity among koreans.Scientific reports · 2025Article
- Impact of body weight on the relationships between sleep quality in healthcare workers and their somatic health, sexual life, occupational burnout and stress.International journal of occupational medicine and environmental health · 2024Article
- Sex and Age Differences in the Effects of Food Frequency on Metabolic Parameters in Japanese Adults.Nutrients · 2024Observational
- Article
3 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundPrevious research has demonstrated a relation between insufficient sleep and overall obesity. Waist circumference (WC), a measure of central adiposity, has been demonstrated to improve prediction of health risk. However, recent research on the relation of insufficient sleep duration to WC in adults has yielded inconsistent findings.
objectivesTo assess the magnitude and the consistency of the relation of insufficient sleep and WC.
methodsA systematic search of Internet and research databases using Google Scholar, Medline, PubMed, and PsycINFO through July 2013 was conducted. All articles in English with adult human subjects that included measurements of WC and sleep duration were reviewed. A random effects meta-analysis and regression analyses were performed. Heterogeneity and publication bias were checked. Results are expressed as Pearson correlations (r; 95% confidence interval).
resultsOf 1,376 articles, 30 met inclusion criteria and 21 studies (22 samples for a total of 56,259 participants) provided sufficient data for meta-analysis. Results showed a significant negative relation between sleep duration and WC (r = -0.10, P < 0.0001) with significant heterogeneity related to sleep comparison method. Potential moderators of the relation between sleep duration and WC were not significant. Funnel plots showed no indication of publication bias. In addition, a fail-safe N calculation indicated that 418 studies with null effects would be necessary to bring the overall mean effect size to a trivial value of r = -0.005.
conclusionsInternationally, cross-sectional studies demonstrate a significant negative relation between sleep duration and waist circumference, indicating shorter sleep durations covary with central adiposity. Future research should include prospective studies.
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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.