ArticleInternational journal of environmental research and public health2020
Associations of Objectively-Assessed Smartphone Use with Physical Activity, Sedentary Behavior, Mood, and Sleep Quality in Young Adults: A Cross-Sectional Study.
Article in International journal of environmental research and public health, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 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
50 citing papers in PubMed, 1 synthesis or guideline pooled it, 89 citations in OpenAlex.
- Physical Activity and Sleep Quality Association in Different Populations: A Meta-Analysis.International journal of environmental research and public health · 2023Pooled it
- Effects of a 14-day social media abstinence on mental health and well-being: results from an experimental study.BMC psychology · 2024Trial
- StandUPTV: Preparation and optimization phases of a mHealth intervention to reduce sedentary screen time in adults.Contemporary clinical trials · 2024Trial
- Social media use duration and epigenetic aging among U.S. adults in the MIDUS refresher study.PLOS digital health · 2026Article
- Predictors of sedentary behaviour in adults: the role of social media addiction and physical activity - a cross-sectional study from Turkey.Journal of global health · 2026Article
- Not all screen time is sedentary: evidence from aligned smartphone sensing and accelerometry data in adults.Journal of activity, sedentary and sleep behaviors · 2026Article
- Parental Awareness and Practices Regarding Electronic Devices' Effects on Children's Sleep: A Cross-Sectional Study.Public health challenges · 2026Article
- How School-Related Internet Use Shapes Teens' Learning, Communication, Academic Stress, Online Behavior: A Qualitative Study.Academic pediatrics · 2026Article
- Article
- Bidirectional associations of recreational sedentary screen time and 24-h behaviors: a dynamic cross-sectional multilevel model analysis.Journal of activity, sedentary and sleep behaviors · 2026Article
- Association between exercise-related social media use and exercise self-efficacy: a PLS-SEM approach.Frontiers in public health · 2026Article
- Article
- One-year update on physical activity and smartphone addiction in university students: A systematic review of novel research.Preventive medicine reports · 2025Review
- Associations of smart device apps with and without a perceived self-efficacy component in a physical activity context with BMI.Journal of health psychology · 2025Article
- Article
- Smartphone usage in young adults: cross-sectional associations with physical activity, sleep, social isolation, academic achievement, and anxiety.Frontiers in psychiatry · 2025Article
- Effects of Smartphone Use on Sleep and Mental Health in Young Adults: Going Beyond Self-Report.Depression and anxiety · 2025Article
- Viewing distance, font size and symptoms of eyestrain in non-presbyopic and presbyopic smartphone users.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2025Article
- Relationship Between Salt Consumption and Blood Pressure in Sub-Saharan African Population Living in an Urban Setting: The Case of a Group of Cameroonians.International journal of hypertension · 2025Article
- Smartphone use on the toilet and the risk of hemorrhoids.PloS one · 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
4 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
This study assesses the associations of objectively-measured smartphone time with physical activity, sedentary behavior, mood, and sleep patterns among young adults by collecting real-time data of the smartphone screen-state. The sample consisted of 306 college-aged students (mean age ± SD: 20.7 ± 1.4 years; 60% males). Over seven days of time, the following variables were measured in the participants: objectively-measured smartphone use (Your Hour and Screen Time applications), objective and subjective physical activity (GoogleFit and Apple Health applications, and the International Physical Activity Questionnaire (IPAQ), respectively), the number of hours sitting (IPAQ), mood (The Profile of Mood State (POMS)), and sleep (The Pittsburgh Sleep Quality Index (PSQI)). Multiple regressions analyses showed that the number of hours sitting per day, physical activity, and the POMS Global Score significantly predicted smartphone use (adj.R2 = 0.15). Further, participants with low levels of physical activity were more likely to increase the use of smartphones (OR = 2.981). Moreover, mood state (
Indexed as
Identifiers
What 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.