SynthesisJournal of medical Internet research2019
Accuracy of Wristband Fitbit Models in Assessing Sleep: Systematic Review and Meta-Analysis.
Synthesis in Journal of medical Internet research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 239 papers, 6 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.
The Effect of Increasing Physical Activity or Reducing Mobile Phone Use on Mental Health in Young People in Austria: a Randomised Controlled Trial
Can a Standardized Sleep Bundle Reduce Sleep Disruption After Cardiac Surgery: A Pilot Randomized Controlled Trial
Who cites it
239 citing papers in PubMed, 6 syntheses or guidelines pooled it.
- Pooled it
- Effects of Digital Sleep Interventions on Sleep Among College Students and Young Adults: Systematic Review and Meta-Analysis.Journal of medical Internet research · 2025Pooled it
- Performance of consumer wrist-worn sleep tracking devices compared to polysomnography: a meta-analysis.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2025Pooled it
- Keeping Pace with Wearables: A Living Umbrella Review of Systematic Reviews Evaluating the Accuracy of Consumer Wearable Technologies in Health Measurement.Sports medicine (Auckland, N.Z.) · 2024Pooled it
- Accuracy of Fitbit Charge 4, Garmin Vivosmart 4, and WHOOP Versus Polysomnography: Systematic Review.JMIR mHealth and uHealth · 2024Pooled it
- A systematic review of the associations between sedentary behavior, physical inactivity, and non-motor symptoms of Parkinson's disease.PloS one · 2024Pooled it
- Circadian phenotype is associated with diurnal variation in human exercise performance.European journal of applied physiology · 2026Trial
- The Influence of 25- and 90-Min Afternoon Nap Opportunities on Subsequent Nighttime Sleep in Student Athletes.Journal of sleep research · 2026Trial
- Heat-TreatedNutrients · 2025Trial
- A Series of Personalized Melatonin Supplement Interventions for Poor Sleep: Feasibility Randomized Crossover Trial for Personalized N-of-1 Treatment.JMIR formative research · 2025Trial
- Effect of Intraoperative Intravenous Infusion of Esketamine Combined with Dexmedetomidine on Postoperative Sleep Disturbance in Patients Undergoing Radical Mastectomy.Drug design, development and therapy · 2025Trial
- Commonly Used Dose of Montmorency Tart Cherry Powder Does Not Improve Sleep or Inflammation Outcomes in Individuals with Overweight or Obesity.Nutrients · 2024Trial
- Comparing sleep measures in cancer survivors: self-reported sleep diary versus objective wearable sleep tracker.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2024Trial
- LSD increases sleep duration the night after microdosing.Translational psychiatry · 2024Trial
- How the Plants for Joints multidisciplinary lifestyle intervention achieved its effects: a mixed methods process evaluation.BMC public health · 2024Trial
- Effects of mental contrasting on sleep and associations with stress: A randomized controlled trial.Journal of health psychology · 2023Trial
- Effect of an Internet-Delivered Cognitive Behavioral Therapy-Based Sleep Improvement App for Shift Workers at High Risk of Sleep Disorder: Single-Arm, Nonrandomized Trial.Journal of medical Internet research · 2023Trial
- A Classifying Model of Obstructive Sleep Apnea Based on Heart Rate Variability in a Large Korean Population.Journal of Korean medical science · 2023Trial
- Exploring Wearables to Focus on the "Sweet Spot" of Physical Activity and Sleep After Hospitalization: Secondary Analysis.JMIR mHealth and uHealth · 2022Trial
- A Feasibility Study: Testing Whether a Sleep Application Providing Objective Sleep Data to Physicians Improves Patient-Physician Communication Regarding Sleep Experiences, Habits, and Behaviors.Advances in therapy · 2022Trial
179 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
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundWearable sleep monitors are of high interest to consumers and researchers because of their ability to provide estimation of sleep patterns in free-living conditions in a cost-efficient way.
objectiveWe conducted a systematic review of publications reporting on the performance of wristband Fitbit models in assessing sleep parameters and stages.
methodsIn adherence with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement, we comprehensively searched the Cumulative Index to Nursing and Allied Health Literature (CINAHL), Cochrane, Embase, MEDLINE, PubMed, PsycINFO, and Web of Science databases using the keyword Fitbit to identify relevant publications meeting predefined inclusion and exclusion criteria.
resultsThe search yielded 3085 candidate articles. After eliminating duplicates and in compliance with inclusion and exclusion criteria, 22 articles qualified for systematic review, with 8 providing quantitative data for meta-analysis. In reference to polysomnography (PSG), nonsleep-staging Fitbit models tended to overestimate total sleep time (TST; range from approximately 7 to 67 mins; effect size=-0.51, P<.001; heterogenicity: I
conclusionsSleep-staging Fitbit models showed promising performance, especially in differentiating wake from sleep. However, although these models are a convenient and economical means for consumers to obtain gross estimates of sleep parameters and time spent in sleep stages, they are of limited specificity and are not a substitute for PSG.
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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.